ML20065D490
| ML20065D490 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 08/30/1982 |
| From: | Rogers W GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20065D482 | List: |
| References | |
| PROC-820830-01, NUDOCS 8209300049 | |
| Download: ML20065D490 (65) | |
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- GEORGIA POWER COMPANY F
HATCH NUCLEAR PLANT
- . . t PROCEDLRE i
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Radiation and Contamination Con ~ trol ~
PROCEDURE TITLE HNP-ROO5 PROCEDURE NUMBER ,
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RESPONSIBLE SECTION ,
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SAFETY RELATED ( X ) NON-SAFETY RELATED ( )
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APPROVED APPROVED '
REV. DESCRIPTION DEPT. PLANT DATE HEAD MAN ER t
12 General Revision '
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. REVISICN CHANCES .
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See Title Page 1 of 24 j-RADIATION AND CONTAMINATION CONTROL {
t A. PURPOSE I
To outline the procedures which will be used by Health Physics i personnel and by all plant personnel to ensure that potential radiation hazards are adequately defined, that adequate controls are instituted so that radiation exposure to personnel working in Radiation Control Areas or working with radioactive materials is minimized, and that each person carries out his work in a i radiologically safe and economical manner. ,
- 8. GENERAL MONITORING .
- 1. External Radiation Measurement. .
a.' Al'1 individuals entering a Radiation Control Area'are required to wear. a TLD badge and pocket dosimeter at all times. A record of accumulated external radiation exposure received is obtained principally from the interpretation of the TLD badge. Direct reading pocket dosimeters provide an "on-the-spot" reading for the l individual.
- b. Radiation Control Areas within the Primary Protective Area are classified and identifiedStrict as to procedures levels of radiation and for contamination.
will be enforced for access to these areas.
- c. There are numerous area radiation monitors located throughout the plant which alert personnel to abnormal radiation levels.
I
- d. In addition to the measurements made by the area
' radiation monitors, the measurement of external dose rates is accomplished by portable survey instruments.
The operation of survey instruments will be in accordance with the operating instructions outlined in each particular instrument procedure. Instruments covering high, intermediate, and low ranges are available in the plant and in emergency kits.
- 2. Loose Surface Contamination Measurement.
1
- a. In Radiation Control Areas loose surface contamination is normally determined by wiping a disc smear over a 100 square centimeter area of the surface being i
monitored. Detailed procedures for contamination h s surveys are found CONTAMINATION in HNP-8012, SURVEYS. SURFACE RADICAC_is then The smear ing cgynge[
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' a beta-gamma (G-M) count rate meter. Alph%1ap'tivity of 1F
a smear is determined by means of a ypr'6'plo'rtionhl detector. gjh ' ,jd. %
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loose surface contamination will be determined by wiping a disc smear over a 100 square centimeter area ;
and counting the smear with a proportional or G-M l l
counter for gross beta-gamma. t
- 1
- 3. Airborne Contamination Measurement.
In addition to the area radiation monitors particulate airborne activity will be determined as needed by utilizing portable air samplers with filter paperFilter and mobile samples from.
continuous air monitors (C.A.M.fs).
portable air samplers are counted for gross beta activity using a gas-flow proportional or G-M counter. Alpha activity of a sample is determined by means of a gas-flow proportional counter. The continuous air monitors are self contained and therefore record air activity continuously on a strip chart recorder. Operation of these air samplers will be in accordance with HNP-8013, 8109, and.8128.
C. ROUTINE AREA MONITORING l
-~
- 1. Health Physics personnel will perform surveys that are necessary for the designation of Radiation Control Areas.
Surveys will include routine checking of areas for external radiation hazards and contamination, as well as for airborne radioactivity.
Routine surveys will be conducted in the plant to establish radiation, airborne, and contamination levels throughout the 2.
facility. Whenever practical, Health Physics personnel will make the first entry into areas of unknown radiation levels. Otherwise, licensed operating personnel entering areas of unknown radiation levels will carry survey meters to determine radiation levels.
D. SPECIAL AREA MONITORING
- 1. Special radiation, airborne and contamination surveys in addition to routine surveys, will be made when necessary.
Examples of situations requiring special surveys are.
- a. During any test or work items involving:
(1) Installation or removal of in-core fissione chambers. . .
- fM Installation or removal of core start'up;' sources.
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(3) Installation or removal of read, tor; .ccomponents.
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i (4) Loading and unloading fuel elements. }
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(5) The opening of a primary coolant system ,
(conducting a special survey of the surrounding ;
area for contamination after the opening or '
removal operation has been completed and before other work is resumed). l (6) The removal of any material which has been in contact with the primary coolant (i.e., valves, pumps, sections of piping, demineralizer resin, :
etc.).
l During reactor operation after the intial i (7) installation of, and after repairs or ,
modifications to, radiation shielding. j
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- b. Following any situation which may result in radioactive contamination. i
- c. Before and after any decontamination operation. .
- d. Checking shop areas in which contaminated equipment is being worked on.
- e. When rupture of a radioactive - material container occurs, or when spills are reported. ,
- f. When handling spent fuel.-
.g . Unconditional release of items to unrestricted areas.'
E. CONTAMINATION LIMITS
- 1. Personnel, material and equipment released from Radiation Control Areas shall be free of significant radioactive contamination. Release surveys will be made and will include alpha, beta and gamma radiation detection unless it is known that a given type is not present. Release surveys t.iust be performed where the background does not exceed 200 cpm on beta gamma detection meters or 50 dpm on alpha detection meters. The procedure for surveys is fou.id in HNP-8012 SURFACE RADIOACTIVE CONTAMINATION SURVEYS. s, (V
- 2. Surface Contamination Limits. (
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- a. Clean Areas. jQ'QA q
' YneNdjirea, For surface areascontamination outside the boundary will be of a@,dmi.,tistiiUti'and kept ay maintained below the limits set for Contam1gpfed Areas s in HNP-SOO3 RADIATION CONTROL AREA CLASSIFICATIONS.
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See Title Pace 4 of 24 b., Contaminated Areas - Frequent Access.
i For areas which become contaminated and which require frequent access, efforts will be made to clean up the contamination as soon as possible, provided the clean-up operation will not result in unnecessary exposure to clean-up personnel.
For frequent access areas in which it is impractical to decontaminate immediately, contamination levels will be maintained below the following:
(1) Smearable surface radioactive contamination
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Beta-Gamma 50,000 dpm/ LOO cm Alpha 50 dpm/100 cm I
(2) Fixed surface radioactive contamination Beta-Gamma 10 mR/hr at l' using a RO-2A or RO-3A Alpha 50 dpm per detector area
- c. Contaminated Areas - Occasional Access.
For contaminated areas which may require occasional access, the values in E.2.b may be increased by a factor of 10-100. .
NOTE ,
When the above values in E.2.b.'and E.2.c. are exceeded, the areas involved should be decontaminated -
as soon as possible.
- d. Regulated Equipment.
Equipment of a portable nature, such as hand tools, small pumps and motors, of such design which makes I decontamination impractical, will be considered regulated equipment and stored in a designated area, which will be labeled as a Radioactive Material Area.
The department using this equipment will be responsible for proper storage of this equipment.
Regulated equipment may have smearable contamination on - -
- exposed surfaces up to 50,000 dpm/GM probe area l
beta-gamma and 50 dpm/ detector probe area alpha, Land l
may have radiation levels up to 10 mR/hr at one,. inch.
This equipment must remain in a designated stor' age area
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See Title Pane 5 of 24 in Radiation Control Areas by workers wearing protective clothing. Workers requesting to remove regulated equipment from a designated storage area must first notify Health Physics. Health Phys.ics will determine the. radiation and contamination levels on the regulated equipment and determine if it is acceptable for this equipment to be used in the requested work area. Equipment having radiation levels higher than 10 mR/hr may be used after consideration of all factors involved, i.e., the nature of the equipment, the
- frequency of use, and the length of time it may be in use. Movement of regulated equipment will be controlled such that highly contaminated equipment will ,
not be used in relatively clean areas.
e., Personnel Contamination Limits. ,
(1) Personnel c.ontamination levels shall be kept as .
low as possible at all times, therefore the !
following limits may be used as a guide to release personnel to clean areas:
rm Beta-Gamma SKIN CLOTHING INTERNAL Fixed Removeable Fixed Removeable c: 1000 DPM/ No Detectable et 1000 DPM/ No Detectable 5% MPBB Probe Area Activity Probe Area. . . Activity ..
. s Alpha .
SHIN CLOTHING INTERNAL Fixed Removeable Fixed Removeable 4: 50 DPM/ No Detectable dC 50 DPM/ No Detectable N/A Probe Area Activity Probe Area Activity NOTE All Beta, Gamma measurements are using a pancake probe G.M. detector with count rate instrument.
(2) All Alpha measurements are using a PAC-4G gg(a MS-2 Counter set up for alpha detection.g 4f (3) Personnel With contamination level the above values shall notify Heal N:NPbfsic:s D ) bthan and decontamination shall be attegg([d*.'b>}fnS %
contamination levels cannot ba reduced'6elow the 4
.. above values a Health Physics Shp'erdiffe#or his t designated alternate will determine the release.
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. (4) Movement of Material and Equipment from a .
Radiation Control Area.
Any component, item of equipment, or tools having been used in a Radiation Control Area, will requir?, as much as practical, a beta-gamma dose rate and contamination survey prior to orAll after coming out of.a Radiation Control Area. ,
released items will be classified by Health Physics personnel as either an unconditional l release or conditional release. !
(a) Unconditional Release Item:
Material and equipment will be given an j unconditional releaso by Health Physics .
i per'sonnel for use outside the boundary of.a '
Radiation Control Area if no smearable beta gamma or alpha contamination is found using a smear technique and radiation levels at one inch are less than 100 CPM above background using a GM count rate meter with HP-210 Probe or equivalent.
NOTE Material and equipment which contain inaccessible and/or porous, surfaces.will not be released until the material or equipment is known not to be contaminated.
(b) Special Releases: t
- An assistant Plant Manager may author'ize the unconditional release of certain radioactive material when it has been determined that the total activity of the material is less than" C".
that specified in 10 CFR Part 20 Appendix (c) Conditional Release Item: ,
Removal of material and equipment from Radiation Control Area with radiation and ,
contamination levels in excess of those limits specified for unconditional release must be approved for conditional release by Health Physics personnel. Contaminatedin material and equipment will be placed s
containers, when practicable pr.ior.;to removal from a Radiation Control Ars4 and' tagged with Figure 1tagorlabe(ed^withara.djoactive
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See Title Page 7 of 24 r material label. These labels will contain j )
the levels of radioactivity, description of material, initials of individual performing the survey and date.
1 When it is not practicable to place contaminated material and equipment in containers movement out of an RCA will be ;
controlled to prevent contamination spread. '
No conditional release item will be allowed ,
to leave the Primary Protected Area without the express approval of the Health Physics j staff. i (d) Contaminated Equipment Control: 'l i
Certain items of material and equipment used
- during maintenance activities may, from time to time, become contaminated, and prior to return to the Maintenance Shop Tool Room,
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must be stored until decontamination can be performed. In this cvent, Figure 3 may be
- - completed by Health Physics, if requested by Maintenance, and may be forwarded to the Maintenance Department and the equipment will be stored under lock and key until such time decontamination can be performed.
(5) Laundered Protective Clothing:
(a) Returned laundered protective clothing shall ,
be surveyed by Health Physics personnel for acceptable limits of contamination as described in HNP-8007, LAUNDERING OF PROTECTIVE CLOTHING.
(b) Procedures for handling and surveying protective clothing is detailed in HNP-8007, LAUNDERING OF PROTECTIVE CLOTHING.
F. RADIATION WORK PERMIT l
- 1. The Radiation Work Permit (RWP) (HNP-8008) is a procedure used to provide radiation safety and an awareness Q l
l significent exposure radiation levels in areas whq$ %_.,#
l personnel will be working. . sy
- 2. Procedures for issuing and using an RWP are//Dund'in HNP-8008, RADIATION WORK PERMIT. g*g S* %
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G. PROTECTIVE APPAREL AND EGUIPMENT , ,
- 1. Location.
Protective apparel'and equipment are kept in the warehouse r in other areas as judged necessary by the Health Physics Supervisor. A minimum supply of clothing and equipment is kept in the Radwaste Building 132' elevation, Reactor Auilding 228' elevation, Turbine Building 112', Reactor Building 130' elevation and Reactor Building 158' elevation.
- 2. Protective Apparel.
Coveralls, shoe covers, hoods and gloves are available for use. This apparel is distinctively colored (yellow) and should be used only as anti-contamination clothing.
- 3. Use of Protective Cldthing.
The following procedure will be used by personnel required to wear full protective clothing in Radiation Control areas.
- a. Entry Procedures.
(1) Obtain coveralls, gloves, head covers, shoe covers, rubbers, and other equipment as required by the Radiaticn Work Permit.
(2) Follow HNP-8Oll, PROTECTIVE CLOTHING DRESSING AND UNDRESSING.
NOTE
. When working in contaminated areas, personnel should periodically check levels in contamination on protective clothing with a G.M. survey meter or count rate meter. If gross contamination is detected, i.e., radiation levels in excess of 5 mR/hr at one inch, the protective clothing should be removed and clean protective clothing put on.
- b. Radiation Control Area Exit Procedure.
(1) Follow HNP-80ll, PROTECTIVE CLOTHING DRESSING AND UNDRESSING, to remove clothing to prevent ,
contamination of the skin or articles offclothing underneath.
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containers as they are removed. ,
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(3) Monitor self and personal clothing with count rate meter before leaving the access of the Radiation Control Area. j (4) If no contamination exists, exit the Radiation Control Area. ,
(5) If contamination is present, notify Health Physics ,
personnel immediately.
- 4. Additional Protective Clothing Requirements.
As the conditions warrant, additional protective clothing may be required for operations involving high levels of ,
i contamination or in situations where a splash hazard from contaminated liquid may exist.
- 5. Respiratory Protection.
- a. Respiratory protection devices may be required in any ,
I situation arising from plant operations where the potential for airborne radioactivity exists. It
- b. In such cases, the air will be sampled by Health Physics personnel and the necessary protective devices '
specified according to the concentration and type of airborne contaminants present. It is the m
responsibility of the ind,ividual and his supervisor to notify Health Physics personnel when working with radioactive materials that are likely to become airborne. Every precaution should be taken to keep the air contamination to a minimum through use of proper ventilation and prior decontamination of equipment or work areas.
- c. Issuance and use of all respiratory protection equipment is described in HNP-8010.
H. TEMPORARY SHIELDING .
- 1. General Criteria for Installing Temporary Shielding.
Prior to installing shielding on a safety-related system, an evaluation of the loading eiiects of the shiciding material on the system must be completed. 1(,
All temporary shielding installations involving (, haf safety-related system must br performed undeepy Mei enance-C s
Request. For temporary shie Ading involving'?e'quijm'ent$or areas other than safety-related systems uhn r H.F'./tsb f) reman s
or supervisor will determine the necessity:Jor/a.loEWing S evaluation and Maintenance Request, andWillr'egjev,t
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l assistance as necessary from the appropriate department (s).
A Design Change Request (DCR), in addition to an MR, is required if shielding is to be made permanent.
Temporary shielding is defined as shielding installed to reduce personr.el exposure during job performance, to reduce background radiation levels in frisking areas, or to bring radiation levels in an area into compliance with NRC regulations. This type shielding should only be installed for a specific time period, i.e. for the duration of a job, to the next scheduled outage when corrective measures may be taken, or as directed by plant management.
- 2. Installation on a Safety-Related System.
- a. The person requesting the shielding on the r
' safety-related system will first contact the Engineering Depa.rtment.
- b. The Engineering Department will make or have made an evaluation as to how the shielding will affect the seismic or design loading of the piping or the equipment to which it is applied. Engineering will coordinate the evaluation with the Health Physics staff for specifications of the shield, i.e. size, shape, material, thickness, etc. All evaluations will be documented. '
- c. Upon the completion and acceptance.of the evaluation,. _
an MR will be initiated for placement of the shielding. A copy of the evaluation will be attached to the MR.
- d. The Temporary Shielding Log will be completed per -
Section H.4. below.
- 3. Installation on a Non-Safety-Related System.
- a. The person requesting the shielding will contact a Health Physics foreman or supervisor.
- b. The H.P. foreman or supervisor will determine, using assistance from other departments as necessary, if the shielding installation is of such magnitude to warrant a loading evaluation and if an MR should be issued. If so, step H.2.b. and/or H.2.c. will be completed.g ,
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'c . The Temporary Shielding Log will be completed per.c Section H.4. below. e *,,-
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- 4. Temporary Shielding Log. .
Information concerning the installation will be logged in a Temporary Shielding Log maintained.at the Health Physics office. The log will include a description'of the type shielding, the location where the shielding is to be installed, Maintenance Request number, RWP number (if RWP is required), when shielding is to be removed and any remarks ;
deemed necessary. ,
- 5. Removal of Shielding.
- a. The person who requested the shielding is responsible for its removal at the time designated in the Temporary
, Shielding Log. Reasons for time extensions should be documented in the log. j
- b. Health Physics will review the log on a monthly basis to assure temporary shielding installations are removed in a reasonable time frame after the removal date specified. -
- 6. Discrepancies.
If unauthorized temporary shielding is observed, a Deviation Report will be completed.and corrective action taken as deemed necessary by plant management.
- 7. Types of Shielding.
- a. Alpha and Beta Radiation Alpha and beta radiation can be stcpped or shielded ,
with a sheet of paper and a small piece of steel, respectively. Gamma and Neutron radiation require considerably more material for shielding.
- b. Gamma Radiation (1) For gamma radiation, various thicknesses of dense material such as steel, lead, or concrete can be used to reduce the radiation to desired levels.
(2) A convenient concept to use for rough gamma shielding estimates is the tenth value t 'ckness. .
This value is that thickness of materi ich will reduce the radiation level by a of ten s (10). As shown in the following e tenth value thickness differs with di + iold )
e th value materials and with gamma ene,r,gf[86 g thickness for 6 Mev should b.ef u9 es and
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equipment containing steam or reactor water. The
. 1 Mev Values should be used for irradiated fuel, ,
for isolated equipment and for all equipment ,
during plant shutdown. l 1
TABLE 2 ;
i TENTH VALUE THICKNESSES j 6
APPROXIMATE TENTH VALUE THICKNESS :
MATERIAL 1 MEV GAMMA G MEV GAMMA :
s Lead 1.5 inches 2 inches !
Steel 4 inches 5 inches
- Concrete 12 inches 20 inches Water 24 inches 40 inches ,
- t NOTE '
l The half value thickness for the listed materials is one-third of the tenth value thickness. .;
- c. Neutron Radiation Neutron radiation can be shielded best by using a hydrogenous material such as water, plastic, or paraffin to thermalize the neutrons and by surrounding or impregnating this hydrogenous material with boron, cadmium or lithium to absorb the thermal neutrons. An approximate half value thickness for 1 Mev neutrons to 1.3 inches of paraffin and approximately 2.7 inches for 5 Mev neutrons.
I. RADIATION CCURRENCE REPORTS
- 1. In order to assure that conditions adverse to radiological ,
safety are properly identified and corrected, the use of a Radiation Occurrence Report has been established.
- a. Radiation Occurrence.
NOTE The requirement for the use of this report will be determined by the Health Physics Supervisor or >
designated alternate.
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s Radiation occurrence may be reported toj pJaptV) 3 management f or corrective action and rno e beddo.cdmented by use of Figure 2, REPORT OF RADI DURRENCE.
Types of radiation occurrences ar e ibpdd.dvTollows:
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Includes: j (a) Uncontrolled personnel exposure from external sources. ,
t (b) Uncontrolled personnel exposure from ;
contamination on protective clothing. !
(c) Uncontrolled dose rates existing outside of Radiation Control Areas. l (d) Dose rates inside a Radiation Control Ares greatly exceeding normal levels. j (e) Exposure of personnel to dose rates such that .
a weekly permissible dose of radiation could l be received in less than 6 minutes.
I (2) Personnel contamination control: ,
-- Includes:
(a) Skin contamination. +
l (b) Any contaminated injury.
(c) Any significant pernannel exposure to contaminated air without adequate protection.
(d) Personal clothing contamination.
(3) Surface contamination control:
Includes (a) Any contamination transported outside of GPC controlled boundaries.
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(b) Spread of contamination cutside Radiation Control Area.
(c) Spread of contamination in the immediate work area beyond that which was planned or might
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See Title Pane 14 of 24 (e) Release of contamination to the air, ground, or water which greatly exceeded normal conditions.
(4) Administration control:
Includes: ;
(a) Employee working in a Radiation Control Area ,
without adequate time keeping. ;
(b) Employee isorking in a Radiation Control Area without required or adequate monitoring.
(c)
Employee working in a Radiation Control Area without wearing required or adequate l protet.tive clothing and equipment. ;
-l (d) Employee working in a Radiation Control Area in violation of an RWP.
(c) Employee working in a Radiation Control. Area
_. without personnel meters.
(f) Employee working in a controlled area beyond estimated permissible weekly exposure.
4 (5). Procedures for completion of the report is as -
l follows: ,
(a) The individual initiating the Radiation Occurrence will use the complete Figure 2.
Figure 4 will be used as a monthly tabulation for the Occurrences. He will complete the report through the section, " Action taken At Time of Occurrence". He will then forward the report to the Health Physics Supervisor .
or his designated alternate.
l (b) The Health Physics Supervisor or. his i i
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supervisor, keeping the pink copy for a j l
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. APPROVED APPROVED DESCRIPTION DEPT. PLANT DATE REV.
HEAD MAN GER
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,._______ __ BEG'UE5IE0_0X- -- - ____ .__ _ _ _DEE0BIDst.!I_t'Ee0_6C euO':.'s'_ _ _ __ _ _
_________ Date: signatore: onte: tu.me : _b NW 9 - I -$ '. ) - - . , d _QLd R.(Ti S S_C d - b c'h- M _ _ __- AS DEGCRIDED IN FSAR:
'REVISICN CH."r:GES MODE Cir .CPERATIOtt OR INTENp) (A No
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See Title Page 1 of 36 1
. USE AND CARE OF RESPIRATORS A. PURPOSE To provide instructions for the proper selection, use, '
maintenance, control and storage of respiratory equipment. This procedure covers the following respiratory devices: MSA Ultra Filter Respirator MSA Pressure Demand Apparatus (Air Pack) MSA Constant Flow Air Line Respirator B. SAFETY . Observe Radiation Protection Procedures. C. REFERENCES ., 1. 10 CFR2O para. 20.103 _
- 2. Regulatory Guide 8.15
- 3. - MSA Respirators Instructions for Use and Maintenance
- 4. NUREG-OO41
- 5. A.N.S.I. Z-88.2 (1969)
D. MANAGEMENT POLICY It is the Georgia Power management policy to minimize the inhalation of airborne radioactive materials to all personnel assigned or visiting Plant E. I. Hatch. For this reason it is mandatory that personnel at Plant Hatch adhere to all procedures, and policies relating to the respiratory protection program. The management policy will be normally accomplished by the application of engineering controls, including process, containment, and venti.lation equipment. Periodic evaluation of the respiratory protection program will provide the management with the means for determining what additional measures, equipment and controls may be necessary, where practical to further meet the objective, while in turn reduce the ne or wearing respiratory equipment. g?Y' Routine plant operations are planned activities th'atfire generally repetitiveandoccurwithvariousfr,ddenbiiss,$ e Operations of this nature have been considered.in.thef' design of s the plant and appropriate equipment installed.iir minimire ' most airborne situations. Nif' ' '
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Nonroutine operations are activities that are either ! nonrepetitive or else occur so infrequently that adequate limitation of exposures by engineering controls is impractical. For operations of this type respiratory equipment will be used where needed to provide protection. Emergency operations are unplanned events characterized by risks sufficient to require immediate action or mitigate an abrupt or rapidlyideteriorating situation. Procedures have been issued for handling most emergency situations and are contained in procedure , i series HNP-4000-4999. Adequate quantities of and locations for respiratory protection equipment are provided to nandle emergency situations. Training and retraining of personnel in emergency situations requiring respiratory protection is provided. , Prior to issuing a respirator to an individual, he/she will be informed of the following policy: Persons wearing respirators may leave the area at any time for relief from respirator use in the event of equipment malfunction, physical or psychological distress, procedural or communication failure, significant deterioration of operating conditions, or any other condition that might require such relief. , E. REGULATORY REGUIREMENTS 10 CFR2O paragraph 20.103 specifies regulations regarding exposure of individuals to concentrations of radioactive materials l'n air in restricted areas. This procedure has been written to carry out the regulations. F. DESCRIPTION OF RESPIRATORS
- 1. Ultra Filter Full Facepiece Respirator This respirator is a full facepiece unit with a single or double cartridge providing protection factor of 50 against dust, fumes, and mists having a time weighted average less than 0.05 milligram per cubic meter. (See Table i for definition of protection factor.) The respirator with,'O the rectangelar ultra filter cartridge has an appr. oval No. - l TC 21C-150. The respirator with the round ultra filter Type s H cartridge has an approval No. TC 21C-155. ,.
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- 2. Pressure Demand Apparatus (Air Pack)
The Pressure Demand Apparatus (Air Pack) consists of a high pressure cylinder, a pressure demand regulator connected by a high pressure tube to the cylinder, a facepiece and tube , assembly with an exhalation valve, and a harness assembly i for mounting the complete apparatus on the body. The unit maintains a slight positive pressure inside the facepiece ! during inhalation, thus minimizing potential air in-leakage , into the facepiece. The unit contains an audible signal ; device to indicate when the breathing supply has dropped to ; t a point where the user must return to fresh air. The unit is rated for 30 minutes service. Actual service time u.11 depend on the user and his level of exertion. The uni t has , an approval No. TC13F-29. It can be used in oxygen !
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deficient and in toxic atmospheric conditions and has a protection factor of 10,000 for particulates, gases and , vapors. ,
- 3. Constant Flow Air Line Respirator - Full facepiece l
The Constant Flow Air Line Res,pirator 1s a respirator approved for use in atmospheres not immediately hazardous to life or health. The unit consists of a facepiece and tube assembly, low pressure control valve, from 25-300 feet of air hose, and a portable air filter and regulator. Breathing air for this unit is provided by the plant service air compressors. The service air is filtered and reduced in pressure to 35-40 psig by the portable air filter and regulator to meet the requirements of the respirator. With this respirator, a continuous flow of breathable air is supplied to the facepiece and provides a cooling effect as it meets the respiratory requirements of the wearer. The unit has an approval No. TC19C-78 and provides'a protection factor of 2000 for particulates, gases and vapors.
- 4. Hoods and Suits No allowance can be made for wearing hoods and suitqf r protection against inhalation of radionuclides s t.
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- 1. Regulatory limits and rules.
Respiratory protective equipment will be selected to provide
~~ a protection factor greater than the multiple by which peak concentrations of radioactive materials are expected to exceed the values specified in Table I Column 1 of Appendix B to 10 CFR20. The equipment selected is to be used so that the average concentration of radioactive material in the air that is inhaled during any period of uninterrupted use in an airborne radioactivity area, on any day, by any individual.
using the equipment, will not. exceed the values specified in Table I, Column 1 of Appendix B to 10CFR20.
.For purposes of this procedure, the concentration of radio-active material in the air that is inhaled when respirators are worn may be initially estimated by dividing the ambient concentration in air by the protection factor specified in Table 1. If a respirator user's intake of radioactive materials is later determined by other measurements to have been greater than that expected from initial estimates of radioactive materials in the air the user inhales, the greater quantity is to be used in evaluating ezposures. If it is less than that initially estimated, the lesser quantity may be used in evaluating exposures.
- 2. Administrative rules and limits. . .q ,
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,a . Section E and paragraph G.1 prescribe rules.and' regulations which shall not be exceeded. For.
administrative purposes Tabic 2 will be.used,for selecting respirators. ,l
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- b. If airborne conditions exist which require
, consideration toward exceeding the administrative limits in Table 2, a laboratory supervisor must be consulted and his approval received before using greater values. .
- 3. Selection procedure.
- a. Determine the radiological (external radiation and airborne) conditions in the work area using the procedures HNP-8005, 8012, 8013. Air samples should be taken as near the breathing zone where the work will be performed as possible. (Also if the worker has to pass through an airborne area to get to the work place).
b.. If air sampling confirms that an airborne condition, as defined in HNP-8003, exists in the work area, respiratory protection equipment, increased surveillance, or limitation of working times is warranted.
- c. Consider the type of work, work hazards and locations, time to complete the work, ambient conditions at the work location, equipment to be used by the worker, and the potential for airborne conditions to develop during the work period (i.e. highly contaminated areas and equipment, opening of equipment during the work, air movement in the work location, cutting and welding work, etc.). ,
- d. Consult with a laboratory supervisor or designated alternate and select the proper respirator for the work conditions using Table 2 and paragraph b and c above.
- e. Issue the respiratory equipment per Section H.
The worker, after proper training, will wear the respirator using Section I as guidance for donning the equipment.
- 4. Determination of Airborne Radiation Exposure. -
- a. Anytime an individual is likely to inhale, for any two hours in a day or ten hours in one week, radioactive materials in uniform concentrations as specifigdf,in Appendix B. Table 1 Column 1 of 10CFR20, theafollowing calculations shall be made to determine legdllsjof airborne radiation exposure. pf
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~
airborne radioactive materials as follows: K \ Hours in Area multiplied by Activity N MPC - FRS = (PF) MFC N=1 N N WHERE K = Number of nuclides in the air th Activity = Activity of the N Nuclide in uci/cc I th PF = Protection factor of the respirator for the N , N Nuclide (See Table 1) l th g MPC = MPC of the N Nuclide in u ci/cc 1 N Hours in Area = Stay time in the airborne area in hours . l c. Log the airborne exposure in MPC HRS for the appropriate day on Form 5 (Data Package 3) using the results obtained from G.4.b. NOTE If an individual's airborne exposure exceeds 2 MPC HRS in any one day or 10 MPC - HRS in any one week then that individual's intake will be assessed by appropriate methods as outlined in Section L and all his exposure to airborne radioactive materials will be documented on Form 5 (Data Package 3) for the current calendar quarter including those amounts of exposure below 2 MPC - Hrs. in a day or 10 MPC - Hrs. in a week.. H. CONTROLo _ ,,I,S_ S U A N C E . PROPER USE AND RETURN OF RESPIRATORY EGUIPMErg
- 1. The Health Physics staff controls the issuance, proper use, inspection, cleaning and repair, testing and fitting, spare parts, and quantities of respirator equipment required.
(The Regulatory Specialisi handles special training for the fire brigade and team on SCBA). Training is conducted by the Training Department. .g >
- 2. Respiratory equipment will be issued only to. -
- a. Those persons who have been trained,, fitted and tested for that type equipment. .; ,
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om Georgia ' Power d . ! See Title Page 7 of 3G b., Those persons whose facial hair does not interfere with the scol of the respirator. l
- c. Those persons.who have received medical approval by a physician to wear respirators.
- 3. Only BM/N1OSH approved equipment will be used when taking I credit for the use of respirators in protecting personnel from airborne activity. i
- 4. Respiratory equipment will be issued using a Radiation Work Permit procedure, except during emergency conditions. j
- 5. Adequate surveillance and surveys of the work activity by ,
the Health Physics staff will assure proper use of the i equipment. j
- 6. The Health Physics staff will conduct an adequate number of air surveys during the work period to verify and assess ,
radiological conditions and exposure to personnel. ; ~~
- 7. Facelets will not be used for protection against airborn radionuclides.
- 8. Equipment will be used within the limitations for its type and make of use as described in this procedure. *
- 9. Only the SCBA equipment is to be used as emergency devices.
- 10. Where required, spectacle kits will be furnished to permanent plant personnel.
- 11. Where required, goggles, anti-fog compounds and communication gear will be furnished to respiratory users.
- 12. Contact lenses are not to be worn with full-facepiece respirators.
- 13. Air purifying respirators are not to be used in oxygen deficient atmospheres or atmospheres immediate].y hazardous to life or hea!th.
- 14. No credit will be taken for use of sorbent cartridges against radioactive materials. (
- 15. Only high efficiency cartridges, as described in iht on F '
will be used in air purifying respirators when in,q' allowance for the use of 3. estimating exposures of individuals io airborne radiorrespiratory 3 equipme { fmaterials.
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- 16. Fil'ter cartridges on air purifying resp'irators must be replaced with a fresh cartridge after one work day's use by one individual.
- 17. Respiratory equipment except emergency equipment, will be issued by and returned to the Health Physics staff. i Issuance will be controlled through an RWP permit, a Respirator Clearance List (or Respirator Clearance Card), <
and the use of Form 6 (Data Package 4). The normal method of issuance will be through the use of the cicarance card unless exempted by the H.P. Superintendent or designee. In i lieu of Form 6 (Data Package 4), Health Physics may control issuance and return of respirators at established control . points by the worker surrendering the respirator clearance . card to the Health Physics technician upon issuance. This . card will be retained.until the respirators are returned. l l I. USING THE RESPIRATORS
- 1. Health Physics will issue the proper respirator for the work to be performed.
-~ NOTE
- a. Each respirator user is emphatically advised,that he should immediately leave the area for relief from respirator use in case of equipment malfunction, physical or psychological discomfort, or any other condition that might cause reduction in the protection afforded the user.
- b. Respiratory protective devices should never be worn when a satisfactory face seal cannot be obtained.
- c. Custom Comfo Aerosol - half face respirator will not be um 3d for respi ratory protection.
- 2. Full facepiece w/ type H Ultra Filter Cartridge.
- a. Perform Steps I.5. and I.1.b. above.
- b. Remove the facepiece after use per subsection I.G.
Constant flow air line respirators (full facepiece). a 3. x a. l f 2'
- a. Inspect equipment as per Step N.S. s
- b. Bleed off the house service air line to r;e'ove m' any condensate which may have formed in thg^ system prior to connecting the portable filter and pegulator to the I
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- c. Conneci the portable filter and regulator unit to a
- i house service air line, using the air hose provided.
Attention should be made to keep the unit out of the contaminated area; but if this is not possible, it should be wrapped in plastic.
- d. Tag the service air outlet with a "To Be Operated by H.P. only" Tag.
- e. Adjust the regulator for 35-40 psi. Bleed off the filter trap for moisture. ,
- f. Place the control valve on a belt or loop on the left side of the body. .
I g.' Put on the facepiece as in subsection I.5. l ;
- h. Connect 25-300 f't. of MSA air hose from portable filter l regulator unit to the control valve. Then connect j facepiece breathing tube to the control valvo.
i
- i. After leaving the airborne or work area, do not remove the facepiece until outer pair of gloves, coveralls and shoecovers are removed. (This may not be possible in all cases).
- j. Disconnect breathing tube and air line hose from the control valve. Disconnect air.line hose at outlet of filter regulator unit. -
- k. Remove facepiece as in subsection I.6.
- 1. Shut off air supply to filter-regulator unit and disconnect hose.
NOTE Do not perform this step until all persons are through using the filter-regulator unit.
- m. Place all equipment in designated place fo'r surveying and cleanup.
- n. The plant service air compressors are equipped with a ControlRoomannunciatedhightemperaturealarmfi@,4f theControlRoomrecievesahightemperature)p{brf they will announce over the P.A. system that ti'gk temperature conditions exist in the Unit j(]and/o.r Unit 2 service air compressors. They will pliso',announce that d 3 emA[ff 'O -
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. all personnel using in-line air respirators are to remove their respirators and exit the work area following proper undressing procedures. The Control Room will also notify the Health Physics Foreman who will assure that all persons using air line respirators have removed their respirators and exited the work area.
i
- 4. MSA Air Pack Model 401 pressure demand
- a. Check the pressure gauge in the cylinder valve to i insure that the cylinder is full (2216 psi pressure).
If there is less pressure, the service life will be ! reduced accordingly. ; b.3 Put on the apparatus using either of the following : methods: ,
. t (1) Open the lid of the case and extend the shoulder straps to their full length. Lean forward; grasp the cylinder and backplate firmly, with both ,
hands, between the cylinder clamp and the waist 2 belt. Lift the apparatus straight up and over the head and rest it on your back. The shoulder straps will fall into place over the shoulders. Adjust straps.before straightening up. Fasten waist belt snugly. Should further adjustment be ne:9ssary, lean forward and adjust straps. Use of chest strap is optio,nal. (2) Extend narrow shoulder straps. Don the apparatus like a vest. Lean forward while the shoulder straps are being adjusted. Fasten waist belt securely and snap chest strap if desired.
- c. Open the cylinder valve handwheel fully (at least 3 turns) and close the By-Pass (red) handwheel on the Demand Regulator.
- d. Place palm of hand over the Pressure Demana Regulator outlet firmly to block it leaktight. Th3.s is necessry as the pressure Demand Regulator is spring loaded and air will flow automatically if the outlet is not blocked.
a
- e. Open the Main Line (yellow) handwheel fully and observe the pressure gauge on the Regulator. This gau'g5 indicates the pressure in the cylinder andishould read 2216 psig i 100 psig if fully charged. GIN'ther'e is less pressure in the cylinder the service life"will be reduced accordingly. Turn off the cylinder valve'and
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- watch the pressure gauge on the regulator. There should be no drop in pressure if the equipment is leaktight. If there is noticeable deflection of the needle the eq0ipment should be checked and the leak corrected before entering a toxic atmosphere. Shut off Main-Line Valve.
- f. Put on respirator as per subsection I . S.
- g. Connect mask hose to regulator. Open Main-Lino Valve fully.
- h. Breathe normally as the apparatus automatically satistics any breathing requirement.
NOTE It is necessary to periodically check the pressure gauge on the Pressure Demand Regulator as it continually indicates the pressure in the cylinder. When the needle reaches approximately 540 psi on the pressure gauge, the Audi-Larm Signal will begin ringing. When the bell starts ringing, or when the pressure reaches 540 psi, it is time to return to fresh air. NOTE During normal use the By'-Pass (red) valve is closed and is used only if the Pressure Demand Regulator becomes inoperative. It provides a continuous flow and should be opened and the By-Pass valve adjusted to provide the
. flow desired. Leave hazardous area immediately since life of apparatus is greatly diminished when By-Pass valve is being used.
- i. After leaving the airborne area, remove the tank and harness but do not remove the facepiece until outer pair of gloves, coveralls and shoecovers are removed.
(This may not be possible in all cases). . Assistance will be required to hold the cylinder and harness while ' removing coveralls.
- j. Unlock the lever on the cylinder valve and ,qE,.
valve. Do not use excessive force as theep61 ,bse the4p closes leaktight with little effort. r>'?)pai
- k. Release pressure in high pressure h$se.by brbathing until air is exhausted. "4%
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- 1. Remove facepiece as in subsection I.G.
- 5. Donning the facepiece
- a. Inspect the facepiece to be sure that all parts are in good condition and installed properly. Rubber parts should be pliable and not cracked. See section O for details.
- b. Pull out the facepiece headband straps so that the ends are at the buckles and grip facepiece between the thumb '
and fingers. Insert chin well into the lower part of the facepiece and pull the headbands back over the i head. To obtain a firm and comfortable fit against the { facepiece at all points, adjust headbands as follows: 4 (1) See that straps lie flat against head. (2) Tighten lower or neck straps. (3) Tighten the side straps (do not touch forehead or front strap). (4) Place both hands on headband pad and push in tcward the neck. (5) Tighten forehead or fr.ont straps a few notches if necessary. (6) Check for proper seal.using the field testing procedure in subsecticn J.2. t l
- 6. Removing the facepiece
- a. After using the respirator remove the outer pair of contaminated gloves. Bend your body forward at the waist until the chest is parallel to the floor. Then remove the facepiece by grasping the cartridge housing and lifting outward. (For airline respirators and SCBA's, grasp breathing tube connection at the ,o
- facepiece). y'Q W ,' d' CAUTION c
Care should be taken when removing resp rator to insure that open areas of the face do not b'ecome contaminated l
** from contact with the equipment. AyOID UNNECESSARY l .
l . JERKY MOTIONS WITH THE FACEPIECE AS~ANY CONTAMINATION \- MAY BE SHAKEN OFF AND ON TO YOU. l
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.j b.. Place facepiece along with all associated respiratory i equipment in a doisgnated location for survey and
} cleanup. DO NOT place in contaminated clothing storage j drums. -
WARNING l
~1 Respiratory equipment is a personnel safety device and
.I should not be mistreated (i.e. thrown, kicked, dropped, l mutilated). Personnel found abusing this equipment j will receive disciplinary action.
- c. Survey yourself for contamination, making a very j thorough survey of the face and head. If contamination ,
; ~,
is found contact Health Physics immediately. . 1 l J. FITTING AND TESTING - l 1. Initial Fitting and Testing !
- a. Each person requiring the use of a respirator will be ,
. individually fitted for the particular facepiece prior :
to being allowed use of the respirator equipment. No person with facial hair interfering with the respirator seal area will be fitted and tested. 8 I b. Anthropometric measurements (face length, face width, and lip width) will be taken to identify persons who fall outside of the 95% 1'imits of facial measurement. j Any facial abnormalities will also be noted. This f information will be documented on Form a and will assist in identifying those persons who might have more
; difficulty in obtaining a good seal with a respirator.
-J l c. A qualitative test will be performed for each type of j facepiece as follows:
(1) The person dons the respirator with an organic cartridge attached. t (2) The person checks the facepiece seal using the negative pressure test as described in NUREG-OO41 l- ' paragraph 8.5.2.3.3. (3) The instructor will test the fit during normal
'l - breathing by waving a cotton or stencil brush
=1 filled with isoamyl aced ate gently near Q F
! periphery of the facepiece. Smoke tubes wffn
' available, may also be used. If odoc*Ts;(darfected, s
the, wearer must re-adjust the f a c.eplIeYe';is'nd the i., - test redone. #' - W 3 s d' O ', ' i . '.- fe,[ s. ~> .
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- milliliters of isoamyl acetate for each 1000 cubic feet of room volume. (Do not use heat for evaporation).
(4) The instructor may then have the wearer perform the following movements: (a)
~
deep breathing (b) moving head from side to side (slowly) (c) moving head up and down (slowly) l (d) frown , l
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'i (e) talking (e.g., speaking a short passage aloud)
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,g (f) normal breathing.
(5) The instructor will then re-check the seal with
, isoamyl acetate or smoke tube.
(6) If the tests are acceptable (no leakage) it will i *be documented on Form 2. i
- 2. Field Testing
.l :
4
; a. Where practical, respirators will be tested in the j field using either amyl acetate or irritant smoke.
-) '
- b. Where it is impractical, a negative pressure test will be performed as follows:
4
, (1) Close off the inlet opening of the canister or breathing tube by covering it with the palm of the hand 1 (2) Gently inhale so that facepiece collapses slightly.
(3) Hold breath for 10 seconds. 1 (4) If facepiece remains in slightly collapsed '
' condition and no inward Icakage of air is i detected, the tightness of the respirator is l satisfactory.
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. (5) If unsatisfactory do not use the respirator and contact Health Physics.
\
,f M. MEDICAL REGUIREMENT All ecrsonnel who wear respirators will be evaluated by competent t
1 meoscal personnel prior to an assignment requiring such use. The i evaluation will determine if the individual is physically able toA 5 perform the work and use the respiratory protective equipment.
]
physician will determine what health and physical conditions are
- pertinent. The medical status of each respirator user will be
! reviewed annually. ,
i
.j L. gIDASSAYS AND SURVEYS i Air sampling and contamination surveys l j 1.
j A comprehensive air sampling and contamination survey ; j program is in effect to identify radioactive hazards to : 2 evaluate individual exposures, and to permit proper ' selection of respiratory protective equipment. Surveys are
[
i performed on a routine and special basis per the use of i~
! procedures HNP-8013, 8012, 8008, 8005, 8050 and applicable i instrument operating procedures. High-efficiency (greater l ni than 99%) filter media are used to measure airborne
.l particulate concentrations. Activated charcoal is used to
! t determine radio-iodine concentrations. l- j 2. Bioassays \ s NOTE
;1
- Refer to HNP-8021 and 8009
- a. Whole body counting - ,
f ' (1) It is the intent to obtain a whole body count or
' urinalysis on each G.P.C. employee who may have been exposed to airborne radioactivity at least once each year. .
j (2) Whole body counts will also be made where suspect t
~
internal contamination has occurred. i b. Urinalysis
'l (1) A fission product and tritium analysis willf I performed routinely on selected personnel $Wh ay have been exposed to airborne radioactivl(k.'
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uveau ~o Georgia Power fn( E 15 1 ... .. See Titic Page 16 of 36 t (2) The above analysis will also be made, when deemed 1 necessary, where suspect inte'rnal contamination i has occurred.
- 1 c. Nasal, throat' swabs or washings and breath uples will
'! be performed as necessary on suspect inhalation cases j to serve as a qualitative exposure index for radionuclides.
I a d. Follow up sampling (Whole body, urinalysis, nasal
~i throat swabs, breath samples, etc.) will be performed
.j and will be frequent enough-to evaluate the uptake of radionuclides after an incident. The sancle collection will be appropriately timed to permit accurate q evaluation of the total intake and the resultant dose.
'_,{ ,)
NOTE
-l It is noted that there are extenuating circumstances
-d which may prevent whole body counting of all personnel
' affected by this procedure. Such situations as persons j -
leaving the plant site without proper notification to the management, whole body counting equipment
. malfunction at critical counting times and scheduling ',} impossibilities will prevent a 100% whole body counting j program. The frequency of these events, should not ,
diminish the overall effectiveness of the bicassay program however. j M. RESPIRABLE AIR REGUIREMENT i t l 1. 'All breathing air supplied by air compressors and bottled j air will meet the minimum requirements of Grade D air as prescribed by the Compressed Gas Association or better.
-} Refer to NUREG-OO41 page 5-19 for limits. If high temperature alarm is received for service air compressors,
! then air quality can no longer be guaranteed due to possible
; CD concentrations. See Section I.3.n. for details.
- 2. Sampics of air from air supply sources will be ,taken quarterly and mailed to an outside laboratory for testing. l
. 3. Oxygen and breathing air are not to be used in the same
'i =
apparatus. i j 4. Proper fittings will be used with supplied air equipment.
$ 5. Oxygen shall never be used with air line recpirators.
- 6. All air cylinders used in the MSA 401 units will have the
, .. words " Breathing Air" on the cylinder. .. . ~ '
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*5 See Title Page 17 of 36 N. INSPECTI_DN_AND_ MAINTENANCE
- All respirators shall be inspected routinely before and after i cach use. A respirator,that is not routinely used but is kept ready for emergency use shall be inspected after each use and at least monthly to insure that it is in satisfactory working condition. All routinely used respirators shall be inspected
, before and after use and at least monthly and shall have an
; inspection sticker.
! An inspection sticker shall be attached to the outside and inside
~ of each emergency respirator container and a record of inspection
} kept on Form 3 (Data Package 1), Respirator Monthly Inspection Report. Any respirator not meeting inspection acceptance shall be repaired or replaced. Respirators will be repaired only by
; personnel designated by a laboratory supervisor. '
s f 1. Facopiece and breathihg tube (SCBA & Constant Air Flow) l. 4 l
.I a. Inspect the facepiece and breathing tube for signs of j ~; mechanical damage, deterioration, cracking or rupture. '
Tears occur most frequently about strap attachments, i outlet valves and hose. Discatd equipment damaged in this manner.
- b. Check the protective tape and metal band bindings for deterioration. Replace as necessary.
- c. Inspect the tab assemblies on the facepiece used for attaching head straps. All buckles should be present and in good operating condition.
j d. Check the lens for looseness and damage. Discolored or damaged lens should be replaced. 4 i e. Inspect the exhaust valve for proper sealing of the
; rubber diaphragm. Replace as necessary.
- f. Check breathing tube connections for deterioration and
! damage and tightness. Repair or replace as necessary.
I
- 2. Ultra Filter Respirator-Full facepiece. 1 In addition to Step 1, just prior to use:
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- b. Examine the cdrtridge for damage and check that the inlet seal has not been removed.
i
- 3. Pressure Demand Apparatus (Air Pack) i i In addition to Step 1, perform the following:
.i
- a. Check for proper operation.of cylinder valve assembly.
- b. Check main pressure gauge for proper operation and that air cylinder is full (2216 i 100 psig). If cylinder i
pressure is less than 2116 psig, remove air pack from service and recharge. j c. Inspect condition of hose connection and hose to
, cylinder valve assembly. If hose is cracked replace it.
- d. Check operation of Main Line (yellow) valve by '
operating it.
- e. Check operation of low pressure alarm monthly by closing cylinder valve and cracking the Main Line
! (yellow) valv'e open. This should let the pressure i
decay off so the alarm should sound at about 540 psi.
. f. Check operation of regulator bypass (red) valve by operating it.
- g. Inspect all belts for signs of fraying. Inspect around side strap buckles.
- 4. Constant Flow Air Line Respirator-In addition to Step 1 perform the following:
- a. Check the operation of all couplings by mating them to working couplings.
- b. ChecP all hoses for cracks and leeks.
- c. Connect the portable air filter regulator to an air supply and check operation of the gauge, filter, regulator and inlet and outlet couplings. Check.the i
filter trap for moisture. Pressure gauge shoul'd. read
', 35-40 psig. O NOTE
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t l ..; e Filter media for filters will be'nch,anged after each 1
- refueling outage for the units use'd'duringgthe outage.
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- 5. MSA 401 SCBA Inspection Checklist .
i a. Check lists are inluded in each 401 SCBA Air Pack Unit. t
- b. Refer to the checklist while performing the monthly inspection. Comply with each item listed. See Form 1 (Figure 1).
1
- 6. S.C.B.A. Breathing Air Tanks (Model 401 Air Pack).
- a. Each steel tank will be hydrostatically tested to 3360 psig. on a 5 year frequency.
'b . Each aluminum and fiberglass tank will be 3 hydrostatically tested to 3360 psig on a 3 year
; frequency.
Form 4 (Data Package 2) will be used as a master list c. l 1 for determining when the testing will be performed.
- d. Testing documents will be filed in the Document Room. ,
- 7. Semi-Annual MSA 401 Regulator Testing.
- a. Each regulator will be tested every six months using
' the MSA Por+able Regulator Tester. l
- b. Once the regulator passes all the tests as described in the MBA Portable Regulatbr Tester Manual an inspection l t sticker will be place on the regulator bearing the date
- it was tested.
- c. In the remarks section of the monthly respiratori
' inspection sheet FORM ___3 (Data Package 1) for the i particular MSA 401 that is being tested, note it was tested and that it psssed or failed its test.
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. NOTE Only personnel trained and certified by MSA will be approved to test or repair MSA 401 Regulators.
O. CLEANING AND SANITIZING t
- 1. Monitor entire equipment as soon as possible after use to determine level of contamination. Pay particular attention to filters, exhaust valve housing and straps.
NOTE If necessary, facepieces may be re-issued to the same
' - person on the same day if the following limits are not exceeded on any surface of the facepiece. Alpha ; ~,~ surveys are not required unless alpha contamination is ;
suspected. .{ 5
- a. Fixed contamination:
$ Beta-gamma-0.2 millicad per hour above background a t contact.
2 I Alpha-100 d/m/.100 cm
- b. Smearabic contamination:
No detectable removable dctivity using a standard swipe
> technique (disc smear over 100 cm3).
i
- 2. Facemask and breathing tube.
The facepiece and breathing tube assembly of respirators l must be cleaned, sanitized, dried, surveyed and inspected after each day's use as follows:
- a. Add one package of powdered MSA Clehaer-Sanitizer per gallon of warm water (about 120 degrees F.).
- b. Immerse equipment in the solution and scrub gently with a soft brush until clean. Take care to clean the
' exhalation valve in the facepiece and all other parts that exhaled air contacts. A dishwasher may be used in lieu of hand cleaning.
- c. Rinse in plain warm water (about 120 degre s F.) and s then air dry.
NOTE #st > e b .) $s
- Do not fold head straps in front,m,,f.f, ace,' piece 9 for
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d., Survey the equipment for radioactive contamination.
.; The facopiece and breathing tubc(s) must have no q
detectable removable activity using a standard smear
,' survey technique. Fixed contamination shall not exceed l
O.2 millicad/hcur at contact beta-gamma and 100 dpm/100
; cm S alpha. . Alpha surveys are not required unless alpha contamination is suspected.
1
- e. Place routinely used facepieces after inspection in a clean plastic bag and store in their assigned storage locations. (During periods of high usage it will be acceptable to delete the clean plastic bag storage requirement). Place respirators assigned for emergency use only, after inspecting, in the compartments built for them and return them to their storage locations.
I j . NOTE 1 1 . Respirators should be packed or stored so that the l facepiece and exhalation valve will rest in a normal
> position and function will not be impaired by the elastomer setting in an abnormal position.
- 3. Other equipment (harness, regulator, air cylinder, hose).
.I.
- a. Remove the used air cylinder from the Pressure Demand q
i Apparatus (Air Pack) and decontaminate by wiping with a
' wet pad of Cleaner-Sanitizer solution and then with a dry pad.
E
- b. Wipe down harness, br.eathing bags, regulator and hose with wet pads as necessary to reduce the transferable i contamination to less than 1000 dpm/ LOO cint beta-gamma and 100 dpm/100 cm1 alpha. Alpha surveys are not required unless alpha contamination is suspected.
- c. Survey equipment after drying to verify contamination levels do not exceed those in Step O.3.b.
- d. Attach a fully charged cylinder to the harness and regulator assembly of the Pressure Demand Apparatus (Air Pack).
- e. Store equipment in their designated areas.
I P. REVIEWS AND RECORDS If
- 1. A laboratory foreman will routinely review respireforyp practicesandprocedurestoassesstheprogramjdfffBfiveness.
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- 2. Timely assessments of a particular individual's intake will be made if and when required and adequate records will be maintained for summary review and evaluation.
- 3. If an individual's intake exceeds 40 MPC hrs. in seven consecutive days an evaluation will be made and action taken
! to assure against recurrence. Records of the occurrence,
' evaluations and actions taken will be kept in a clear and readily identifiable form suitable for summary review and evaluation. Radiation Occurrance Forms (HNP-8005), '
Personnel Contamination Report (HNP-8009), Radiation Work Permits (HNP-8008) in addition to survey records, bioassay results, etc. make up most of these records.
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+ ,
4 APPENDIX I __________.._________-___ _____ ______________ _.-----_----_ .---_-__ PAGE NO.
-I SECTION TITLE t 1 A Purpose __ ________... _ ______
1
;; B Safety _______ __
1 C References J 1 D Management Policy _ _ _ _ _ _ _ _ _ _ _ _ _ _ . .__________ Regulatory Requirements 2 (i E _ ________ Description of Respirators a j F _____________.___._____ _ _ _ _ _ _ _ _ . _ _ _ . .._ __ ____ 4
'l G ,
Selection of Respirators for Use _ _ _ . .__________ H Control Issuance, Proper use, and Return l of Respiratory Equipment 6 i., _ _ _ _ _ . ._ _ _ ______________________________ _ _ _ _ _ . i Using the Respirators 8 H I Fitting and Testing 14 . 7 J Medical Requipement 16 d H 1 16 L Bioassays and Surveys _ _ _ _ _ _ _ _ _ _ . .__________ Respirable Air Requirement s 18 M 18 j N Inspection and Maintenance .__________ Cleaning and Sanitizing 21
- O 1 _ _ . . _ _ _ _ _ . . _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - . .___ _--___
23 ii P Reviews and Records i i Tables: 1 Protection factors for respirators 26
- 1. .._ ___ _-__
Airborne concentration limits for 28
- 2. ..___-_-_-_-
Forms:
- 1. InsP.,ections of 401 SCBA 29.._
Respiratory Protection Training 3C 2. Respirator Monthly Inspection Report Q ( 31 3.
..____________________________-______________q_,.a________
- 4. MSA Respirator (Model 401) SCBA [ \ 33
' (Tank Hydrostatic Test MasterJgst).s *.; "*
- _ ________ .._ _______________-____ ____________.- o MPC-HR tracking (Yearly) S 35
- 5. ,
G- __________ .._____-______________________ _______ _9 ______ Respiratory Issuance 37
- 6. _____-..)
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, i TABLE _1, d
d ' PROTECTION FACT, ORS FOR RESPillATORSi *
< , SELFCTION OF TESTED PROTECTION
] FAC10RSd & CEI TIFIED EOl'IP3f ENT PARTICU. l'A R TICL*- LWRtiAU OF .\tlMS NNilONAL LATES 1.All S. GAS FS INSTilltTE FOR OCCll'ATIONAL
.. 1 DrSCRIPTIONb ggoppsc ONLY A val' ORS <
%3 S Art'TY AND Ill'At.111 APPROVAt.S
.': l. AIR PURitTING RrSPIR ATORS
.l Facepiese, half ma>L8 NP- 10 Facepiece, full NP 50
))
s e. Facepiece, half mask, full, or hood PP 1000 30 CFR Part,II Subpart K 1 !!. ATSf0SritrRINSUPPLYING RTSPIR ATORS 1 1. Air hne respirator
.; Facepiece, half mask CF 1000 1 racepiece, half mask D 10 '
i Facepiece, full CF 2000 Facepiece, full - D, 50 30 CFR Part !! Subpart J Facepiece, full PD 2000
$ Ilood . CF . 20008 Suit j
. . CF h j i 2.Self contained breathing apparatus (SCBA)
-f Facepiece, full D SO 71 Facepiece, full PD 10,000) 30 CFR Part 11 Subpart H Ju Facepiece, full R 50
' 'j d Ill. CO\f tllNATION RESPIRATOR Any combination of air-purifying Protection factor for
~ ;}i and atmosphere-supplying respit stors type and mode of operation 30 CFR Part !I I II.63(b)
.s '
as tisted above
- a
-1 .
2 1,
,n .
-For use ir the selection of respiratory protective devices to be 2. The pr'otection factors apply:
-} ssed where the contaminant has been iJentified and the
^4 concentration (or possible concentration) is known. (a) Only for trained iridividuals wearing properly fitted i
D sespirators used and maintamed under supervision in a
! Only for shasen faces and where nothing interferes with the well-phnned respiratory protective program.
j seal of tight fittirs facepieces against the skin. (floods and 1 suits are excepted.) , (b) For air purifying respirators only when high efficiene/ 4 particulate filters (abcve 99.97% (emovat efficiency by
- l 'The mode symbols are defined as follows:
thermally generated 0.3 um dioety! phthalate (DOP) test) l are used in atmospheres not deficient in oxygen and not l} CF= continuous flow containing radioaetise gas or vapor respirato:y hazards. J D = demand NP= neptive pressure (i.e., neptive phase during inhala. (c) For atmosphere..upplying respirators only when [ )] . tion) PD = pressure demand (i.e., always positise pressure) supplied with adequate respirabic air l 4 PP = positne pressure ' Excluding radioactive contaminants that present an absorption 1 j R= demand, recirculating (closed circuit) or submersion hazard. For tritium oude, aprroximately one i , h3lf of the intake occurs by absorption throu;;h the skin so d t. The protection factor is a measure of the Jegree of prose'e. that an oserall protection factor of less than 2 is appro;riate tion affordcJ by a respirator, det'ined as the ratio of the when atmosphereauppl>ing respirators are used to. prot,cct j t
't concentrJtion of suburne radioactive materta! outude the against tritium oude; for example: g '(,
t respiratory protectne equipment to that ms Je the equip.
- 6-
'j ment (usually snude the l'aceriece) under conditions of 8.'c', ,
-l uw. It is ap;ihc4 to the ambient ant.orne concentraison to If the protection factor PF overall for critium estimate the concen tration inhaled by the wearer ac. for a device is: oxide is:
f( cording to the following formula:
-! 10 l.82 Concerkration Inhaled = Ambent Airborne Conantration goo 5. g,93 ;
i Protection factor 1,000 1 1.99 , ! ?' l , i
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be overcome if a short cape.like estention to the hood is wnin umler a colt or coieratts. 'Other lumtations specitwd by t q the approval agency suust be considered before usmg a hood
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FORM 1 J t. A d INSPECTION OF 401 SCBA FORM
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- 1. Items of inspectis,n on faceptete and breathing tube.
.~j
- m. Insure farepiece is a 401 mask with spring loaded enhaust valve.
- b. Mechanical damage.
5 e Cracking or ruptures. Tears around strap attachments, outlet valve and hoses.
? t.
d.
- e. Deterioration metal band bindangs.
- f. Stuck pahaust valvv.
- g. Damaged eshaust valve.
- h. Deterioretton, denege, tightness of breathing tube.
..t i. Missing clips on face tens.
] ' j. Cracking or deteriora. ion of gaskets between facepiece, hose, regulator l
- k. Insure alland home.on facepiece are adjusted fully out.
strept 2. Items of inspection on Pressure Demand Apparatus (Air Pack).
- s. Insure cylinder is full.
- t. Inspect cylinder f.ir physical damage.
,l i
- c. Damage and proper operation of cylander valve assembly.
. rD (( d. Damage and proper operation of low pressure alarm. (540 PSI)
'1 .
- e. Damage to connections on hose from cylinder to regulator.
y'] f. Dar* 3e and proper opreatson of pressure gauge on tank.
,. j g. Cracks in hose from regulator to cylinder.
9
- h. Operation of main line (Ye!!ow).
by pressure ldrop (see section 1.4.d.arclicking i e.1.
,'T 1. Operatton of bypass line (Red). . Check air tightness
- j. chattering,
- k. Unusual sounds in the regulator (whistling, g
f' 1. or rattling). Damage and proper operation of the pressure gauge on the requimtor.
- m. Physical or mechanstal daneqe to the regulator.
,j
- n. Fraying of helts and straps on harnass. straps are adjusted fully out.
- o. Insure all belts and 3 p. Insure all buckles will worts properly.
1 q. Insure cylinder is in the terness correct. rla m
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-e RESPIRATORY PROTECTION TRAINING FORM
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.j flCSPIRMQRY PROFfIlCT4 TRStd$
DATE:
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l INITIAL ,_[ ftETRAINING ~ i BACGE e S.S. e PWT' (tant, isret, msddle snatial) --.....=__ Dt.'P T . ANTWf'EQtSJ31C FAQN_ DFA$lffg1
,., Facial Length:
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Face Width: y'
- Lip Width -
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" FActN_ MINf.ErBLII g$1 List any f acial abnormality which may be prohibitive in obtaining an
. :] ',
acceptable fit such as facsal hair, a weak jaw wsthout a Clearly defined menton, hollow temples or cheeks, scars, estessive wrinkles or missing dentures l.]-
/
I .h 1 ..........._ _
..= -
-,, and I have I 1 have received instructions in respiratory protection,
-1 t>een advised that I may leave an area when using a respirator at any
*! time for relief from cespirator ute in the event of equipment malfunc-tion, physical or psychologscal distress, procedural or consnunication
,] failure, significant deterioratson of operating conditions, or any
'I t other condition that might require such relief.
I s TRAINEE SIGNATLFE _ s ......._ Fit Test Results: Acceptable Unacceptable
.l 1
Written Test Results: Actsptable Unacceptable -==-
.i Ttin above inelividual in qualified to use the following respiratory
.' i l j systems!
I' 3. [ MGA Ultra ,' inter ( n 2. [ Cons' tant Flo*w I f I ~ 4 l l 3. ,, Peu 401 Air Pach l , 4, DATE: ' ' COMPLETED BY i ' i w . nolo als y/
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- 2. A= Acceptable (This is the QJ.l,Y condition these respirators must be neft in).
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- 3. 0.0.S. - Out of Service (see Ramarks f or explanationt ]
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