ML20002A522
| ML20002A522 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 05/31/1966 |
| From: | Doan R US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Coe R YANKEE ATOMIC ELECTRIC CO. |
| References | |
| NUDOCS 8011170516 | |
| Download: ML20002A522 (6) | |
Text
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SUPPLEMENTAL FILE C0P.Y
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UNITED STATES j
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ATOMIC ENERGY COMMISSION WASHINGTON, D.C. 20545
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IN REPLY REFER 70; Docket No. 50-29 llAY 311966
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Yankee Atomic Electric Company 441 Stuart Street Boston, Massachusetts 02116 Attention:
Mr. Roger J. Coe Vice President Gentlemen:
The Yankee Atomic Electric Company, as well as a number of other licensees, has requested authority from the Connaission to use respiratory protective equipment in accordance with the provisions of 10 CFR 20.103(c)(3).
As you know, we have been considering for some time the estab-lishment of specific standards and procedures regarding the use of respirstory protective equipment.
The Comunission has let a number of contracts for studies related to this problem, and has received advice and guidance from an ad hoc consnittee composed of a number of recognized experts representing industry, labor, research institutes, and other government agencies.
We have concluded that subject to the limitations set forth in the attached authorization, the use of respiratory pro-tec'tive equipment in determining the exposure of individuals to concentrations of radioactive materials in restricted areas, may be permitted for the Yankee plant.
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Yankee Atomic Electric Company MAY 31 1966 Accordingly, you are hereby authorized, pursuant to Section 20.103(c)(1) and (3) of 10 CFR 20, to make allowance for the use of respiratory protective equipment in conjunction with activities authorized by License No. DPR-3 in determining whether individuals in restricted areas are exposed to concentrations in excess of the limits specified
'in Appendix B, Table I, Column 1 of 10 CFR 20, subject to the conditions and limitations set forth in the attached authorization.
We are considering an amendment to Part 20 to provide generally for the use of respiratory protective equipment.
In the event such amend-ment to Part 20 is issued, its requirements and limitations will supersede the provisions contained in this authorization.
Sincerely yours, OriginalEgd Bi R.L Dom.,-
R. L. Doan, Director Division of Reactor Licensing
Enclosure:
As stated above Distribution Doc. Room Formal ppl.
DRL Reading R&PRSB Reading Orig: WNischan Y
C. Henderson E. G. Case H. Shapar L. Kornblich (2)
N. Stoner (5)
R. Huard G. Page D. Skovholt P. Norian N. D. Mason bec:
H. J. McAlduff, ORO E. E. Hall, RA J. A. Harris, PI E. B. Trenunel, IP i
R. Leith, OC
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Authoriz.; ion Pursuant to Section 20.103(c)(1) and (3), 10 CFR 20 Yankee Atomic Electric Company (hereinaf ter referred to as "the licensee") is hereby authorized, pursuant to Section 20.103(c)(1) and (3) cf 10 CFR 20, to make allowance for the use of respiratory protective equipment in conjunction with activities authorized by License No. DPR-3 in determining whether individuals in restricted areas are exposed to concentrations in excess of the limits specified in Appendix B, Table I, Column 1 of 10 CFR 20, pursuant to the following conditions and limitations:
1.
In circumstances in which adequate limitation of the inhalation of radioactive materials by use of process or other engineering controls is impracticable, the licensee may permit an individual in a restricted area to be exposed to average concentrations of airborne radioactive materials in excess of the limits speci-fied in Appendix B, Table I, Column 1 of 10 CFR 20 provided:
A.
The individual uses respiratory or other appropriate protective equipmant such that the total intake, in any period of seven consecutive days by inhalation, ingestion or absorption, would not exceed that intake which would result from breathing the concentrations specified in Appendix B, Table I, Column 1 of 10 CFR 20 for a period of 40 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br />.
B.
The licensee shall advise each respirator user that he may 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 wearer.
C.
The licensee maintains a respiratory protection program adequate to assure that the objective of Item "A" above is met.
Such program shall include:
(i) Air sampling and other surveys sufficient to identify the hazard, to evaluate individual exposure, and to permit proper selection of the respiratory protective equipment; (ii) Procedures to assure proper selection, supervision and adequate train-ing of personnel using such protective equipment; (iii) Procedures to assure the adequate fitting of respirators and the testing of equipment for operability; (iv) Procedures for maintenance to assure full effectiveness of respiratory protective equipment, including issuance cleaning and decontamination, inipection, repair, and storage; (v) Bio-assays of individuals and other surveys as may be appropriate to evaluate individual exposures and to assess protection actually pro-vided; and (vi)
Records sufficient to permit periodic evaluation of the adequacy of the respiratory protective program.
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1 2-The licensee has evaluated the protective equipment (I) and has determined D.
that, when used to protect against radioactive material under the conditions of use to be encountered, such equipment is capable of providing a degree of protection at least equal to the protection factors listed in Table I attached hereto (2),
2.
The licensee shall notify, in writing, the Director, Region I, Division of Compliance, U. S. Atomic Energy Commission, 376 Hudson Street, New York, New York 10014, when the respiratory protection program is initiated.
Such notifi-cation shall be made within thirty (30) days af ter the date that allowance for the use of respiratory protective equipment is first made.
3.
The licensee shall not assign protection factors in excess of those given in Table I attached hereto in selecting equipment.
(1) In evaluating respiratory protective equipment for use against radioactive materials to assure that the equipment provides the protection factors listed in the attached Table I, the licensee may accept equipment approved under appropriate test schedules of the U. S. Bureau of Mines to the extent pertinent.
(2) The factors listed apply only to protection against radioactive materials.
Additional precautions may have to be taken to protect against concurrent non-radiation hazards.
9
.4-TABLE I
. PROTECTION FACTORS FOR RESPIRATORS PROTECTION FACTORS 2/
Particulat's Modes 1/
and Vapors and Tritium Description Gases Except Oxide Tritium Oxide /
3 I.
AIR-PURIFYING RESPIRATCRS Facepiece, half-mask 10 1
Facepiece, full 100 1
II.
ATMOSPHERE-SUPPLYING RESPIRATOR 1.
Air-line ':cspirator Facepiece, half-cask CF 100 2
Facepiece, half-mask D
100 2
Facepiece, full CF 1000 2
Facepiece, full
-D 500 2
Facepiece, full PD 1000 2
Hood CF 1000 2
Suit CF 4/
4/
2.
Self-centained breathing apparatus (SCBA)
Facepiece, full D
500 2
Facepiece, full PD 1000 2
Facepiece, full R
1000 2
3.
Combination respirator Any combination of air-purifying and Protection factor for type atmosphere supplying respirator, and mode of operation as listed above.
-1/ CF:
continuous flow D:
demand PD:
pressure demand (i.e., always positive pressure)
R:
recirculating 2/ (a)
For purposes of this authorization the protection factor is a measure of the degree of protection afforded by a respirator, defined as the ratio of the concentration of airborne radioactive material outside the respiratory pro-tective equipment to that inside the oquipment (usually inside the face-piec#, under conditions of use.
It is applied to the airborne concentration to cetermine the concentration inhaled by the wearer, according to the following formula:
Airborne Concentration Protection Factor Concentration Inhaled
=
, i 2-.
-(b) The protection factors apply:
(i) only for individually fitted respirators worn by trained individuals and'used and maintained under supervision in a well-planned respiratory protection program.
(ii) for air purifying respiratorc only when high efficiency particulate filters and/or sorbents appropriate to the hazard are used.
(iii) 'for atomsphere supplying respirators only when cupplied with. adequate respirabic air.
3/ Excluding radioactive ~ contaminants that present an absorption or submersion hazard.
4/ Appropriate protection factors must be determined taking account of theNo perscability of the suit to the contacinant under conditions of use.
protection factor greater than 1000 shall be used except as authorized by the Commission.
NOTE 1:
Protection factors for respirators as may be approved in the future by the U. S.-Bureau of Mines according to approval schedules for respirators to protect against airborne radionuclides may be used in lieu of the protection factors listed in this Table. Where additional respiratory hazards other than radioactive ones are present, especially those ic=cdiately dangerous to life, the selection and use of respirators shall also be governed by the approvals of the U. S. Bureau of Mines in accordance with - their applicable schedules.
NOTE 2:
Radioactive contaminants for which the concentration values in Appendix B, Tabic I of 10 CFR Part 20 are based on internal dose duc -to inhalation may, in addition, present external exposure hazards at higher concentrations.
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