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| document type = TECHNICAL SPECIFICATIONS & TEST REPORTS, TEST/INSPECTION/OPERATING PROCEDURES | | document type = TECHNICAL SPECIFICATIONS & TEST REPORTS, TEST/INSPECTION/OPERATING PROCEDURES | ||
| page count = 33 | | page count = 33 | ||
| project = TAC:61015 | |||
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Latest revision as of 08:46, 12 December 2021
ML20141N172 | |
Person / Time | |
---|---|
Site: | Davis Besse ![]() |
Issue date: | 01/31/1980 |
From: | TOLEDO EDISON CO. |
To: | |
Shared Package | |
ML20141N145 | List: |
References | |
1242, RES-OPS-006.00, RES-OPS-6.00, TAC-61015, NUDOCS 8603040441 | |
Download: ML20141N172 (33) | |
Text
Serial No. 1242 e Attfchment 6 LESSON PLAN REVISION / REVIEW HISTORY EO 7351 LESSON PLAN TITLg LESSON PL AN NUMBE R Droeate. #
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l RES-OPS-006.00 Program
Title:
OPERATOR TRAINING Course
Title:
OUALIFICATION TRAINING Lesson
Title:
DRAEGER GAS ANALYZER USE, FUNCTION, AND APPLICABLE PROCEDURE REVIEW Approximate Time: 1 Hour Revision No.: 00 Date: 8601 l ,
Resource Materials for the Instructor:
Job Aids: None
. Audio / Visual Equipment Needed: Overhead Proiector List of Transparencies: Draeger 01-16 Equipment / Tools: Draeger Multi-Gas Detector Kit Model 21/31, One Sample of Ces for practical demonstration (approx. 20 ppm) Ammonium Hydroxide.
Safety Requirements: Davis-Besse Safety Practices Instructional Setting: Classroom / Lab Student Materials: Pen or Pencil, Special Considerations: None Instructor
References:
Abnormal Procedure, AB 1203.14.3 " Toxic Gas and Liquid Release.
J CH 4025.01 " Determination of Toxic Cases with the Draeger Multi Cas Detector."
Handbook of Toxic and Hazardous Chemicals and
, carcinogens, Marshall Sittig Noyes Publications i Park Ridge, New Jersey, U.S.A.
Dangerous Properties of Industrial Materials, Sixth Edition, N. Irving Sax, VanNostrand
{ Reinhold.
i f Student
Reference:
Same as the above l
i
-1 of 15
4 DRAEGER CAS ANALYZER RES-OPS-006.00 Obiectives Upon successf al completion of this course, the student will be able to:
4
- 1. Determine the procedures and or environmental conditions which require an equipment operator to use and read the Draeger Gas Tube Analyzer.
- 2. Describe the function and use of the Draeger Gas Tube Analyzer.
- 3. List in proper sequence the steps to follow in operating a l
Draeger Gas Analyzer.
- 4. Read and interpret results from a gas-air sample taken using the Draeger Gas Analyzer.
, . Describe at least two factors which may influence the results indicated on the Draeger Tube Indication.
- 6. Relate the indication on the Draeger Tube to factors such as Threshold Limit Values, dangerous concentrations in breathing
! air, and safe concentrations in breathing air.
P
- 7. List safety considerations which should be used when drawing a potentially hazardous air sample.
I 1
2 of 15
DRAEGER GAS ANALYZER RES-OPS-006.00
1.0 INTRODUCTION
l A. The purpose of this training lesson is to provide the l equipment operator with background on when and how to use a Draeger Gas Analyzer to determine Toxic Gas ,
concentrations. j
)
2.0 PROCEDURES AND . BACKGROUND INFORMATION Introduce A. Toxic Gas and Liquid Release Procedure AB !.203.14.3.
- 1. AB = Abnormal Conditions and procedures to follow in handling such conditions.
- 2. The Toxic Gas and Liquid Release Procedure was written to describe actions which may be taken in the event of a toxic gas release and/or a toxic (poisonous) liquid release.
- 3. This procedure outlines:
- a. Alarms - indications
- b. Actions
- c. Responsibilities
- d. Notifications
- e. Description of Toxic Gases located at the Davis-Besse site.
- 4. Toxt: Gases Three Major Toxic Gas Hazards exist in the Stations
- a. Chlocine
- b. Ammonium Hydroxide
- c. Hydrazine 1
(1) Chlorine Gas (a) Within the control room are alarm indications for chlorine gas entering the ventilation system.
These alarms are:
3 of 15
DRAEGER CAS ANALYZER RES-OPS-006.00 AE 5358A and AE 5358B. Alarm for 4
Chlorine gas at a set point of 5 ppm chlorine i
, Computer point 0 973 will actuate l at an indication of 3ppe or greater as indicated from the station chlorination unit. Station chlorination monitors are located at the Water Treatment Building.
(b) Chlorine is stored or used:
)
(i) Station Chlorination System i
(Railroad Tank Car)
(ii) At water treatment plant:
Chlorine gas cylinders, evsoorators, dispensers, and eiectors.
Chlorination Controls and alarms at the water treatment i building are inside Door 14 on ,
the west side of the building.
. The chlorine dispensers,
, evaporators and electors are located in the room next to
! the controls, inside Door 15.
Read all signs prior to entering the Station j Chlorination System and make sure you are entering the proper door.
i (c) Physioloaical Ef fects of Chlorine Cas Detectable Odor at 3.5 ppa
. i 4
Throat Irritation at 15.1 paa Coughing at 30.2 ppa Dangerous in 30-60 minutes at 40-60 ppa.
4 of 15 l
1 2
DRAEGER CAS ANALYZER RES-OPS-006.00 (d) First Aid For Chlorine Gas asphyxiation keep the person were and '
administer oxygen until the ambulance arrives.
Spisshes of liquid chlorine and/or highly chlorinated water i destroy clothing and will result in irritation and acid burns if clothing is next to skin.
Remove clothes and keep patient warm with blankets.
(e) You can test for chlorine leaks using a mist of Ammonia or rags dipped Ammonia; smoke will appear when Ammonia contacts chlorine.
(2) Ammonium Hydroxide:
(a) One 55 gallon drum is stored in the Turbine Building on Level 585' near the TPCW (Turbine Plant Cooling i
Water Pumps).
The ammonium hydroxide is pumped into a chemical mix tank and added to the Feedwater Seccidary Side, the Condensate Storage Tenks and the Auxiliary Boiler Chemical Addition Tank.
(b) Review of Toxicology on Ammonium Hydroxide TLV = 25 ppe CAUSTIC CHEMICAL SOLUTION Ammonium. Hydroxide is -
intensely irritating to mucous membranes, eyes and skin.
4 i l 5 of 15 1
- . . _ ,.._. ._,_ _ . . _ . __ _ _ _ _ r.,_,,-_._.._-,_.. . . , _.
DRAEGER GAS ANALYZER RES-OPS-006.00 There may be corrosive burns ,
q of skin or blister formation upon contact with liquid Ammonium Hydroxide Ammonia.
Cas is also irritating to the q
eyes and to moist skin.
If contact with sain or eyes with Ammonium Hydroxide should
- l; occor, flush immediately with large quantities of water.
If swallowed accidentally, give
, large quantitiew of water and DO NOT induce vomiting.
Remove contaminated clothing and keep person warm with
, blankets.
, (3) Hydrazine (a) located in the same area as-the Ammonium Hydroxide, Hydrazine is also pumped into a chemical mix tank and added to the Feed-water Secondary Side, Condensate Stocage Tanks and .\uxiliary Boiler Chemical Addition.
Tank.
(b') Review of Toxicolosv on Hydrazine 1 TLV = 1.0 ppe Hydrazine vapor is highly irritating l
' to the eyes, upper respiratory tract, and skin. Exposure causes delayed eye irritation.
1.avere exposure to hydrazine may produce temporary blindntss.
Hydrazine liquid is corrosive, i
producing penetrating hurns and severe dermatitis.
6 of 15
4 DRAEGER CAS ANA'L12ER RES-OPS-006.00 1
i Pertansnt eye lesions may occur 1
if liquid hydrazine is splashed into eyes.
Inhalation of hydrazine may cause dizziness and amuses.
(c) First Aid:
If hydrazine gets into eyes, irrigate immediately. If
! chemical contacts skin, i flush with water immediately.
1 ,
j If a person breathes 1.trge amounts of hydrazine vapors, move to fresh air and perf6rm
! aritificial respiration if necessary.
1 i Employees should remove wet or l contaminated clothing l immediately to avaoid i
corrosive contact and f.lammability hazard.
3.0 INDICATIONS OF A TOXIC CAS RELEASE A. Environmental Conditions:
- 1. Indications of a Toxic Cas and/or Toxic Liquid Release 4 include:
i
- a. Strtt.g odor of:
Ammonia gases Chlorine Hydrazine ,
i
- b. Liquid: Each of these liquids may emit toxic gas fumes.
(1) Sulphuric Acid (2) Sodium Hydroxide (3) Lithium Hydroxide (solution) 7 of 15
i DRAEGER GAS ' ANALYZER RES-OPS-006.00 t
h (4) Tank drum levels decreasing rapidly
- I (5)' Spilled material - large weight (volume) loss is indicated or noticed. ;
B. Actieng: Introduce Overhead: -
l 1. Persons detecting the leak should inform the Draeger 02 Control Room.
~
- a. Leave the area, staying upwind i 2. The shift Supervisor is to l t a. Notify equipment operators to attempt to isolate ;
j the leak.
- 3. If there are indications that the release may no
- offsite, have radiation monitoring teams or auxiliary [
operator monitor the site boundary. t
! 4. Ai?xiliary Operator Overhead ,;
Draeger 03 !
- a. Assist in isolation of the leak. ,
- b. If site monitoring is required and RMT's are ;
, not available, on instructions from the Shift
- Supervisor obtain the following
j -
Draeger Cas Analyzer i
- Portable Radio ,
Scott Air Pack i
i
- c. Action i
- .l. Monitor onsite and site boundary as
! directed by Shift Supervisor or EDO until-relieved by RMT or condition is mitigated.-
1 4.0 T0XTC LIOUID RELEASE Overhead l Draeger 07 A. Be aware of Toxic Liquids located at the Davis-Besse
- site which may emit toxic gas fumes
i ,
4-8 of 15
DRAEGER GAS ANALYZER RES-OPS-006.00 t
- 1. Sulphuric Acid
- 4. Extremely corrosive, can cause serious skin and eye burns on contact.
(1) 20,000 gallons stored in an outdoor tank, north of the Water Treatment Building.
(2) Precautions: Sulphuric Acid has a strong exothermic (heat producing) reaction with water.
- )-
1 Contact with water may cause bubbling, heat formations, and splattering.-
1 Sulphuric Acid mist causes irritation of mucous membranes including eyes and respiratory tract.
- b. First Aid:
(1) If chemical gets into eyes or on skin wash immediately with water for at leaat 15 minutes.
l '
If a person breathes in large amount of this chemical renove to fresh air and perform artifical respitation if necessary.
If swallowed, accidentally to NOT INDUCE VOMITING.
l l 2. Toxic Liquids: Sodiuv Hvdroxide t
TLV=2ng/m3 l
! This product is extremely alkalice in nature and 4
is very corrosive to body tissues. Dermatitis may
. result from repeated exposure to dilute
) solutions of Ns0H.
Local contact of sodius hydroxide with skin, eyes, and throat have resulted in extensive damage
- to tissues, with resultant blindeess and skin burns.
i i
I 9 of 15
DRAEGER GAS ANALYZER RES-0PS-006.00 Similar to acid exposure if chemical gets into eyes or on skin wash immediately with water for at least 15 minutes. If a person breathes in large amounts of this chemical, remove to fresh air and perform aritifical respiration of necessary.
If swallowed accidentally DO NOT INDUCE VOMITING.
- 3. Lithium Hydroxide
- a. Flammable and corrosive burns eyes, skin, mouth and esophagus. Strong irritating odor.
Exposure to this chemical may cause nausea, muscular twitches mental confusion, and blurred vision.
- b. First Aid:
If chemical gets into eyes or on skin, flush with water immediately for at least 15 minutes.
If a person breathes in large amounts or is overcome by fumes, remove to fresh air at once and perform artificial respiration. If swallowed, give large quanitities of water. DO NOT INDUCE VOMITING.
4 When the possibility of exposure to any of the Toxic Gases and/or Toxic Liquids exist:
- a. Vear impervious protective clothieg, (Acid resistance coveralls, gloves, boots, head gear, self-contained breathing apparatus - cover all exposed skin and protect eyes, nose and throat.
5.0 FUNCTION AND USE OF THE DRAEGER GAS ANALYZER A. The Draeger Gas Analyzer was designed with the purpose of providing an instantanecus reading, indication of toxic or dangerous gas concentrations.
If as an Equipnent Operator you are called on to use the Draeger Gas Analyzer, the following station procedures and manufacturers instructions may be followed:
10 of 15
DRAEGER CAS ANALYZER RES-OPS-006.00
- 1. Chemistry and Health Phyeics Procedure CH 4025.01.0 = describes operation of the Draeger Multi-Cas detector Model 21/31 Manufacturer's Operating Instructions located inside each Multi-Gas detector Model 21/31.
1 Opearting instructions are available for each kind of detection tube within the kit.
- 2. The Draeger Cas Analyzer kit contains a bellows pump, instructions, and several different detection tubes. ,
- 3. The principle behind the Draeger Analyzer is to draw a known volume of air through a detection tube.
Inside each detection tube is a medium which changes color when it comes in contact with the chemical it is designed to test for.
- 4. The length of discoloration on the detection tube and the number of strokes (air drawn) through the bellows determines the concentration of chemical in the air.
- 5. Draeger Analyzer Kits are located in the Shift Supervisor's Office, HP Monitoring Room and RTL (Radiation Testing Lab, in the Administration Euilding).
6.0 Operation the Draeger Cas Analyzer Overhead Draeger 09 A. Separate instructions are included with each kit for the various gas indicators.
B. The following steps should be followed in Operating the Draeger Cas Analyzer:
- 1. Squeeze the bellows unit a couple times to remove any accurulated vapors.
- 2. Test the pump for tightness using an unopened tube. Overhead Insert the unopened tube with arrow indication Draeger 14 pointing in, and the arrow end inserted into the bellows.
- 3. Squeeze the bellows and listen for air escaping.
The bellows should remain closed with no air escaping.
11 of 15
DRAEGER GAS ANALYTER RES-OPS-006.00
- 4. Break tips of f the Analyzer tuba using the break-off eyelet on the pump (located at the base of the arrestor chain). Be careful to avoid contact with broken glass.
- 5. Insert the Draeger tube cinhtly in the pump with the arrow on the tube pointina towards the bellows.
- 6. Determine number of pumpstrokes required based on the chart included with operating instructions.
- 7. Compress the bellows, release, and wait for the arrestor chain to become fully tensioned (straight) continue compressions in this manner if more than one stroke is required.
- 8. Each compression of the bellows tube is equal to one pump stroke.
- 9. Using the chart on the operating instructions and/
or from C&HP Procedure CH4025.01.0 and length of discoloration on the tube plus number of pump strokes determine the concentration of gas indicated.
7.0 FACIORS WICH MAY INFLUENCE RESUT.TS INDICATED ON THE DRAECER TUME A. Temperature
- 1. Draeger tubes have a temperature range in which they operate. If the ambient temperature is below this temperature range, chemical reaction causing discoloration ray slow down and the indication may be less than actual concentrations.
- 2. Similarly, the chemical reaction between the gas being detected and indicaror may be affected by ambient temperature being too hish.
B. Shelf-life
- 1. The shelf life of Draegar tubes is two years. C&HP restocks all Station kits. Mowever, check the date on the front of each tube holder to ensure it is not out of date.
12 of 15
DRAEGER GAS ANALYZER RES-OPS-006.00 .
C. Light
- 1. Draeger tubes are light sensitive. They should be kept in their dark plastic holders with these inside each kit.
I 8.0 CAS CONCENTRATION INDICATED IN RELATION TO THRESHOLD LIMIT VALUES (TLV)
A. How does the indication on the Draeger Tube relate tot Dangerous concentrations threshold limit values and j for safe concentrations.
- 1. Threshold Limit Value = the air concentration of a given chemical to which an individual may be repeatedly exposed eight hours per day.
i
- 2. The TLV for each gas being sampled is located on the Operating instructions.
- 3. If the indication on the Draeger Tube is well below the TLV for that specific chemical; the air concentration is safe for exposure.
- 4. An indication at or above the TLV is a dangerous
- concentration. Individuals should have appropriate protective equipment including coveralls, gloves, boots, head cover, and respiratory protection.
For acids and caustics (which most of these chemicals are) self-contained breathing is recommended SCBA.
9.0 SAFETY CONSIDERATIONS A. Never enter an area, where there may be toxic gases, ALONE.
B. Wear protective equipment including self-contained ,
breathing apparatus, impervious coveralls, boots, gloves, eye, head & face protection Ensure your supervisor knows i where you are at all times when monitoring for toxic gases.
Use the Buddy system whenever entering an area suspected of containing Toxic Caseg.
C. Be aware of overexposure symptoms and appropriate first-sid procedures. ,
s i
13 of 15 i
]
DRAEGER GAS ANALYZER RES-OPS-006.00 D. If a cholorine leak is suspected stay uphill as the gas is very dense and will accumulate in lower places.
E. Stay in an area of high concentrations oniv as long as required to monitor or fix equipment.
10.0 REVIEW A. Review of Draeger Training:
- 1. AB 1203.14.3 is a station Abnormal Procedure which places the responsibility of toxic gas monitoring in the event of a release upon the equipment operator and/or RMT.
- 2. The Draeger Gas Analyser is a type of monitoring device used to determine various gas concentrations.
The Draeger kits are located.in the Shift Supervisor's Office, the HP Monitoring Room and the RTL Radiation Testing Lab located in the Davis-Besse Administration Building.
- 3. The steps to follow when using a Draemer Kit include:
- a. Squeeze bellows unit a couple times to remove any accumulated vapors.
- b. Test the pump for tightness using an unopened Draeger Tube,
- c. Break tips off the Analyzer tube using breakoff eyelet.
- d. Insert indicator tube with arrow pointing towards bellows,
- e. Determine appropriate number of strokes to be used for sample from chart on Operating instructions.
- f. Compress bellows, release, and wait for the arrestor chain to become fully tensioned.
Continue compressions in this manner (1 compression = 1 stroke) until appropriate numberof strokes have been done.
14 of 15 u_
DRAEGER GAS ANALYZER RES-OPS-006.00
- g. Read length of discoloration on the Draeger tube.
- h. Using chart in operating instructions, determine gas concentrations based on length of discoloration and number of pump strokes.
- 4. The Threshold Limit Value (TLV) for each toxic gas is located on the manufacturer's operating instructions.
The TLV indicates the level to which an individual may be exposed based on working 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> / day, 40 hrs / week.
If the Draeger indication is below the TLV for the gas monitored, the breathing air is safe for exposure.
If the Draeger indication is at or below the TLV, protection from the gas and breathing air is required.
- 5. Factors that may influence the Draeger Tube indication.
- a. Temperature
- b. Light (exposure to light while in storage)
- c. Shelf life-out of date
- 6. Safety considerations:
- a. Don and wear appropriate protective equipment before entering an area suspected of containing toxic gases.
- b. Use the buddy system; do not enter an area alone.
- c. Be aware of overexposure symptoms and first-aid procedures.
- d. Stay as short a time as possible in an area with high concentrations of toxic gases.
RES-OPS-006 15 of 15
c 1
1 AS 1203.14.3
- 1. PURPOSE This procedure is written strictly as a guide for the actions takes in the event of a toxic gas or toxic liquid release. The intent is to instruct personnel what general actions need to be taken and what ,
l problems to look for.
- 2. REFERENCES '
l I 2.1 Toledo Edison Safety Manual 2.2 1984 Emergency Resposae Guidebook, DOT P 5800.3 2.3 D8NPS Emergency Plan
- NOTE: Emergency Scott Air Pack locations:
~
i l 1. Outside Control' Room Auxiliary Boiler Roos l 2.
- 3. Lobby Estrance
- 4. Radiological Test Lab,(RTL) ,
l 3 5. Mu - ,
l
- 6. Control Roos
- 7. CST Storage 603' Elev. x Drager Gas Analyser locations: - Ioring, ,
- 1. Shif t Supervisor's Of fice es- ,
- 2. MP Monitoring Room
- 3. Radiological Test Lab (RTL) i ld w
- 3. CXLORINE OR T0XIC GAS RELEASE INSTRUCTIONS 3.1 Symptoms q 1.1.1 Verification of as alars from any one of the fol N Ogp i chlorine gas aseitors
- l i
- 1. Unit One Chlorination Equipment Roon Noaitor I i
i : (inside Water Treatment Building) b .,
Chloriae Ces Leak alare (setpoint three one by i l - vv.- _, - seu v=.. ee Ch%rination control panel which will actuate the Station Chlorina-tion System TRSL alarm os computer point Q 973. l,
- 2. Control Roos ventilation chloriae gas monitors AE $358A and AE $3533.
The setpoint is five i
DRAEGER01
I 2 AS 1203.14.3
- c.
Tank Car chloriae gas monitors AE 4463A and AE 44638. The setpoint is five pre by volues.
3.1.2 t
Detection of chlorine or any tonic gas by oder or visual means. , t f :
- , 3.2. Automatic Actions
- i. ,
3.2.1 Control Room Monitor - chlorias !
i The Control Room and Tank Car monitors will, at a concentration of five ppe in the control room ventila- l tion intake or near the Tank Car, shut off the fresk !
air supply to the Control Room and shutdows Control I i
Roon ventilation.
e '
3.3 Personnel Actions :
i NOTE: Personnel responding to a tonic gas release should j
maintain a " buddy" system to ensure that adequate !
safety precautions and motifications can be made in 1 the event one individual is overcome. ;
i l 3.3.1 Per---- net.etian the Leak 1 -
l I
t j
- 1. Infore the Control Room of the severity, nature, ( j i
j 3l 2. Leave the ares storiam unvf d --' aheve the leak 3.3.2 Shift Supervisor (Assistaat Shift Supervisor) l 3 1. Rotify Equipeest Operators to att t to isolate '
the leak using appropriate safety proce .
(
, 2. If the tosic gas nears the Costrol Room ensure i I
Control Roos morant ventilation is shutdown, !
}
j j Control * - *~ rsency Ventilation System is !
a".arted and the tress .. ._,,.y _ . . is !
c osee. -
- 3. If there are indications that the release any go offsite, have Radiation Mosiseries .. ..
AhItaa.sy vyerster mot 1 Ear Las sate moundary.
4 4. For large chlorise leaka contact and requert j
assitance from am 16C Ferseas.
- 5. If the leak is non-isolable request assistance froe the supplier.
DRAEGER 02 ;
f I
3 AB 1203.14.5
- 6. If the area of toxic gas concentration can be roped off or barricaded do so.
- 7. Evaluate the situation per Emergency Plan Activation EI 1300.01 and take required action.
- 8. If leak is large, isolate area for approximately 300 ft in all directions and strongly consider a Evacuation .7 mile wide and 1 mile long downwind.
- 9. If leak is small isolate area for approximately 140 feet in all directions.
3.3.3 Equipment Operators
- 1. Two Equipment Operators will don Scott Ait Packs and attempt to isolate the leak.
- 2. If the leak is non-isolable, inform the Shift Supervisor of the exact location and severity of 4
leak.
3.3.4 Auxiliary Operator i
- 1. Assist in isolstion of leak.
- 2. If site monitoring is required and RNT's are not available, on instructions from Shift Supervisor obtain the following:
Draner Cas Analyzer (located in SS Office, RTL or MP Monitoring Room) - -
Portable Radio (located in the Fire / Emergency 5 Cabinet in the OPS testing shift office located at the southwest corner of the turbine deck)
Scott Air Pack -
l
- 3. Monitor onsite and site boundary, as directed by Shift Supervisor or EDO until relieved by RNf or condition is nitigated.
3.3.5 Radiation Konitoring Teams (RMT's) 7 1. If called in free off site proceed to RTL and {
obtain Scott Air Packs, Drager Gas Analyser and Radio. Inform ECC or Control Room and avait instructions from SS or EDO.
- 2. If in plaat proceed to Control Room via a safe route and obtain a Scott Air Pack, Drager Gas {
DR AEGER 03 i
)
4 3
AB 1203.14.3 Analyser, and radio then monitor onsite or site
) '
boundary as directed by Shift Supervisor. ;
3.3.6' Emergency Duty Officer (EDO) 1.
Upon notification proceed to ECC or Control Room as requested by Shift Supervisor. If reporting i 3
to ICC establish communications with Control Room.
t -
2.
If. chlorine concentration exceeds 4 ppe or toxic !
gas: limits are exceeded send out RNT to monitor ;
site boundary. i 3.
If determined that a toxic gas hazard exist 3 beyond site boundary, notify and coordinate activities with offsite support groups, as given in Site Emergency Plan.
4.
If a large chlorine leak cannot be isolated !
consider evacuations per Step 3.3.2.h. !
3.3.7 Guatds 3l One guard should remain in Secondary Alara Station and don a Scott Air Pack if toxic gas is detected or instructed to do so. .
I 3.3.8 Other Station personnel / visitors follow any instructions announced over the Station PA System.
NOTZ:
If evacuation is necessary care must be used to find a safe route offsite and to ensure this route is strictly followed.
- 4. DISCUSSION 3l 4.1 There toxic gasare hazard three can chemicals come: used in the Station from which a major Hydrazine. Ammonium Rydroxide, Chlorine, and N _ -
l 4.2.There are two systems in the Station where chlorine gas is used .
- . Treatment First is theChlorination Station Chlorination System and second is the Water
(
Systes.
4.3 } The Station Chlorination Systes equipeent (evaporators, dispen and ejectors)
Treatment Building. is isolated from other equipment in the Water ,
The controls for this system are in a separate chlorine equipment control room in the Water Treatment i' Building and will be accessible during a leak since no chlorine ,' j is contained in this race. ij l
i DRAEGER 04 i e . . . . .. ... - - . - - _ _ - - - . ,
5 AB 1203.14.4 4.4 The chlorine supply for the Station Chlorination System will be I a 30-ton tank car located north of the Turbine Building near the protected area fence. All liquid chloriae and chloriae solution lines that must be run exterior to buildings, with the j exception of the hookup line to the tank car, are placed in a '
i concrete trench to mitigate the possibility of rupture due to ;
physical contact and to facilitate isolation and repair of I
chloriae system piping.
4 The Water Treatment Chlorination System is enclosed in the Water Treatment Building. It uses chloriae cylinders as its Jupply.
Due to the small volume of the supply and its location most leaks in this system can be classified as local.
Since chlorine gas can be detected by smell at approximately 3.5 -
ppe by volume and evacuation will not be implemented until 4 ppe j by volume, it is probable that a majority of the populace in the i effected area will have left that area prior to implementing l evacuation procedures.
)
i 4 physiolonical Effects of Chlorine Gas '
Effeet pos by Volume Detectable Odor 3.5 Throat Irritation 15.1 Coughing 30.2 Dammerous in 30-60 minutes 40-60 Chlorine gas is two and a half times heavier thaa sir so the best protection against it is to get upwind and above the leak. l 4.5 First aid for chlorine gas asphyxiation consists of keeping the man warm and administering oxygen until the ambulance arrives. ,
Milk may be given in mild cases as a relief from throat irritation.
Splashes of liquid chlorine and highly chlorinated water destroy clothing, and will result in irriation and acid burns if the clothing is nest to the skin. In such cases, remove clothes and
- keep patient warm with blankets, f
If liquid chlorine or highly chlorisated water come in direct contact the the body, flush effected area isssediately with a j 1srae volume of were water or a mild basic solution.
- 5. T0XIC LIQUID RELEASE 5.1 Symptoms 5.1.1 Water Treatment Building Sump 1-1 high level alare {
LAN-L898 in Control Room (alarm on computer point !
L-898). l l
l l
DRAEGER 05
6 AB 1203.14.2 5.1.2 Detection of toxic liquid by odor or visual observation:
- 1. Level indicator alare on toxic liquid storage tanks.
- 2. Accumulation of liquid under er around toxic liquid tanks, piping, and equipment.
- 3. Flcw or stress of liquid from or down sides of toxic liquid tank or equipment.
2l 5.2 Personnel Actions 5.2.1 Persons Detecting the Leak or Unusual Odor shall inform the control roce and responsible foreman.of the severity, nature, and location of the leak or odor.
5.2.2 Shift Supervisor (a control room operator will act in the absence of the Shift Supervisor).
- 1. Evaluate the situation per Emergency Plan Activation, EI 1300.01 and take actions accordingly.
NOTE: For evacuations, obtain wind direction and velocity and announce to all Station personnel which access to avoid and which evacuation routes to use when leaving the Station (see Assembly, Accountability and Subsaquent Evacuation Station Evacuation, AD 1327.11).
- 2. Upon detection of unusual or nozious fumes in the Control Room, manually isolate the Control Room ventilation fresh air supply.
2 3. Have area of spill blocked or roped off and post signs.
_ _ _ . . 4. Notify responsible foreman, request assistance as required.
[
t 5.2.3 CEP Foreman
- 1. The C&BP Toreman or his designee shall verify the type of liquid, isolate the leak, and stop the flow if possible using proper safety precautions and personal protections.
! 2. The CEP Foreman shall provide for neutralization and removal of the release liquid and notify the Control Room when the area has been made safe.
l DRAEGER 06
t 7
AS 1203.14.3 5.3 Discussion on Toxic Liquid Releases 5.3.1 There are a number of toxic liquids used in the Station for water treatacat. Caly Sulfuric Acid and Caustic are stored in large enough quantities which could possibly cause an emergency condition if a
, release occurs:
SulfuricAcid,conces$ rated-3 Up to 20,000 gallons is stored in taak north of Water Treatment Buildias (7-59).
Sodium Eydroxide -
Up to 16,000 gallons at 20% concentration are stored in a tank (7-58) north of the Water Treatment Plant and adjacent to the sulfuric acid tank.
If any of the above tanka were punctured or ruptured, above their centerline, a spray or stream of the liquid may be released outside the sump area ists the nearby roads or parking area, thereby causing a hazard to personnel in that area.
5.3.2 Other chemicals, including lesser amounts of acid and caustic, although classified as toxic, are stored and used is lesser quantities at the Station. If released these chemicals could cause localized danger is nearby personnel and equipeest if undetected. The following toxic liquids are so classified:
Sulfuric Acid Sodium Nydroxide Hydrasise i Lithi m Rydroxide (solution)
Aamonimo Eydroxide Toxic liquid leakage from pumps, task or piping in the y Water Treatment Building, Turbine Building or Auxiliary t
Building are to be corrected as a localized maintenance 4 problem according to this procedure and AD 1844.00, using safety precautions and personnel protection as described in the TED Safety Eaadbook.
5.3.3 The toxic liquids used at the Station are non poisonous but corrosive and irritating as aerosols. Therefore, a leak may require the use of Scott Air Packs if fumes develop as a result of their release.
- DRAEGER 07-m- , - - - ,.--a- - - , - . , .r-- w -e---r-w--m----s'ee-v - --r-w+- --- - = = - ye
3 AB 1203.14.2 6.
OFy-SITE T0XIC CAS RELIASE THAT RESULTS IN A HAZARD TO STATION OPERATIONS 6.1 Symptoms
' Unusual oder or smell of gases in the Control Room og plant structures that is traced to en off-site source. '
I t
6.2 Personnel Actions '
6.2.1 Persons Detecting the Leak or Unusual Oder infore the I control room of the severity, nature, god location of the leal or odor.
6.2.2 Shift Supervisor (a control room operator will act in the absence of the Shif t Supervisor).
L
- 1. .Upon detection of unusual or aozious fumes in the Control Room, manually isolate the Control Roos ventilation fresh air supply.
- 2. Evaluate the situation per Emergency Plan Activation, EI 1300.01 and take actions accordingly.
- 3. Should a transportation accident occur on State Route'2 near the plaat, releasing toxic gas which may affect plant personnel, actify the Ottawa ,
County Sheriff so that appropriate County and State response agencies are contacted.
6.3 Discussion of Transportation Accident
~
6.3.1 The purpose of this section of the procedure is to ensure a transport.ation accident near the site does i not affect control roce habitability.
6.3.2 Based on an evaluation of the types of toxic chemicals that are transported past the Davis-Besse Station on State Route 2, formaldehyde was determined to be the only one that may be of consequence to the Station.
.! Formaldehyde has an odor threshold value of 1 ppe,
- which is8 auch lower than its toxicity limit of 9.8 ppe (12 as/a ). Therefore, it can be detected by its smell and Control Roce Operator's can ensure their safety by manually closing the Control Room Air Intake Isolation Dampers.
Since non-toxic concentrations of formaldehyde are easily detected, the Control Room can remain habitable even for the duration of a worst case postulated formaldehyde accident by closing the Isolation Dampers and isolating the Control Room until the accidental release has ended.
DRAEGER 08 . .
I
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1s 41 ORAME seaween d.sms as due P=mpenhead Flo.1 went ser 43 Speuteff es e Pwmeet of to OGAGES Tehe.
f da immese es late hghty se she pump head $ssoon pone teamsds 4 4. Wu.as .e two.4 S W M pom PEH, d"- as w g 2. unaeen.eende Lose ame 94 Mehen aber _'. 1 _ dure das Seer. 4 4. semesasement in the sense af $ to M ppm pet.
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,I 4J5 aeena.ag een ensmessamme empends se me - usefweiros = ppm 806, eher6e4seen M som P99, 41. Aesmewomem a to - eenge shone M ppm e Is wa8*8" %=4 8'8 *e*ater *8s 18 M'ama enrah des tesweben sememn. Sud me er sempio e A e.oresag arteigt aus der Ldage der Verterheng mesh '_ . ' - Ishenes es hAs ese les tem te tweemmenen u empried auf she longe ei Gbs deseedereessa se a--h I y ZeInaan.org w M,4 mead etueschl ""h*8'"*"8"
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Figure 1 Cross--sectional view of the bellows pump
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Detector tube for CD (range 5-700 ppm) showing an indication af 50
. DRAEGER 11 '
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1 G 4025.01.0
. 1. PURPOSE 1.1 The purpose of this procedure is to ensure the proper operation of the Drager Multi Gas Detector Model 21/31.
- 2. RERRENGS 2.1 Tonic Gas and Liquid Release Procedsre, EP 1202.46 2.2 Operating Instructions, Multi Gas Detector, Model 21/31 2.3 Drager Multi Gas Detector Laboratory Instrument Procedure, LI 4731.00
- 3. DESCRIPTION 3.1 A bellows pump and drager tube of the specified type of gas are the mais components of the Multi Gas Detector. Pump and tube -
form a complete unit so that all data on the measuring accuracy -
are based on their joint use. With both ends of the selected drager tube open and the bellows pumped a predetermined number of times, active ingredients in.the tube will change color. The length of discoloration is directly proportional to the concentra- _
tion of the specified gas. ,
- 4. APPARATUS * -
4.1 The Drager Multi Gas Detector consista of: 1 1
4.1.1 Bellows Pump Hodel 31 with protective bag I l
4.1.2 Sheet metal steel carrying case 4.1.3 Tools and repair parta i i 4.1.4 - Drager tubes for gases
! 3
- 5. REAGErrs -
\
I Kone
.\,
- 6. PRECAUTIOffS AND LIMITATIONS _1 I l
6.1 Each compression of the bellows must be made fully, to the stop,
.7 ;
~2 t to ensure that 100ml of gases are drawn on each stroke. --- -
l 6.2 Some types of drager tubes release vspers during testing which reach the interior of the bellows pump. To prevset undesirabli -
corrosion, the pump should be flushed with clean air by pumping l a few times with no drager tube in place after use.
DR AEGER 12
- e . = = = =
- I- - - - - - ,- , . . , ,- -- ,-.,-.--..,..y.
.,ye---,1.,_, ww., 7 ,,_,w, , -e
l 2 CI 4025.01.0 l 6.3 The shelf life of drager tubes is two years when stored at ;
. temperatures that do not esceed 30*C. Drager tubes are also light sensitive.
- 6.4 The contents in drager tubes are caustic. Isadle with caution.'
6.5 In the determination of hydrogen, the combustion layer becomes warm. At concentrations above 3% by volume the combustion layer I may glow. Air sampling and gas measuremmat are therefore coeducted l separately for ressor.a of safety (precludes explosion).
i 1
i 7. STANDlJDIZATION AND/0R CALIBRATION 7.1 None .
- 8. PROCEDURE 8.1 Insert the selected usopened drager tube in the suction openias of the bellows pump and compress the bellows completely.
8.2 Observe for bellows movement. No movement indicates that the pump is sufficiently air tight and the pump will deliver the specific volume of air (100 cc/ stroke).
8.3 Remove drager tube from pump, break off both ends of selected ,'
tube using the eyelet at the base of the arrestor chain.
j 8.4 Tightly insert the drager tube in the pump head with the arrow on the tube pointing toward pump. ,
8.5 Refer to Attach ===t 1 to determine the number of pump strokes '
for the desired gaseous concentra ion raLge.
8.6 Compresa the bellows, release, and wait until the arrestor chaia is fully tensioned. Renest for the austar of desired strokes. 1 8.7 Evaluate the tube indication by referring to Attachment 1.
- 9. CALCULATIONS -
)
- -~
l
- 9.1 None l
- 10. NOTES 10.1 After a e'gative test result, a tube can be used as many as five times in one day.
10.2 The discoloration la the'used tube can be kept for several days, .
provided that the tube is sealed with rubber caps provided.
i 10.3 One end of the drager tube contains a white recording surface for making notes during testing.
l DR AEGER 13 l .
1
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g DR AEGER 15
4 CH 4025.01.0 ,
c TURE TYPE _
Ammo?in (NHs) 1 5 10 STROKES RANGE (pen) Tube Reading F 50-700 13-140 5-70 ,
5 e 5 50 10 ,
_ Tube _ Couc fope) -
Tube Cone (ppe) 10 , 100 20 _ 10 e
Tube Coe.c (ppe) 20 200 40 20 Tube Cone (ppe) 30 300' 60 30 lobe Cone (ppe) 40 400 80 40 Tube Cone (ppe) 50 500 100 50 Td$ Cone (ppe) 60 600 .120 60 Tube Cone (ppe) 70 700 140 70 TURETirE Chlorine (Cle) 1 5 10 STROUS 0.4-6 RANGE (ppe) Tube Reading 2-30 0.2-3 i
1 Tube Coac (ppe) 0.2 2 0.4 0.2 Tube Cone (ppe) 0.5 5 1.0 0.5 Tube come (ppe) 1.0 10 2.0 1.0 Tube Cone (ppe) 2.0 20 4.0 2.0 Tube Cone (ppe) 3.0 30 6.0 3.0 TUBE TYPE Hydrazine (N,H4) 1 5 10*
STROKES RANGE (ppe) Tube Readina
~,
2.5-30 0.5-6 0.25-3 Tube-Coce (ppe) 0.25 2.5 0.5 0.25 Tube Cone (ppe) 0.5 5.0 1.0 0.5
[ubeCone(ppe) 1.0 10.0 2.0 1.0 Tube Cone (ppa) 2.0 20.0 4.0 _ 2. 0 L
Tube Cone (ppe) 3.0 _
30.0 6.0 3.0 l
- Recommec,ded Stroker Usage .-
Attachment 1 Fage 1 of 3
- DR AEGER 16 .
l
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