ML20211A729
| ML20211A729 | |
| Person / Time | |
|---|---|
| Issue date: | 08/05/1982 |
| From: | Wigginton J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Gibson A, Joyner J, John Miller NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20211A736 | List: |
| References | |
| NUDOCS 8610160473 | |
| Download: ML20211A729 (2) | |
Text
OOb
- gec Mruq#o g
UNITED STATES I
[
g NUCLEAR REGULATORY COMMISSION g
E WASHINGTON, D. C. 20665
\\.
/
MD6 5 1982 MEMORANDUM FOR:
J. H. Joyner, Chief, Technical Inspection Branch, Region I A
. Gibson, Chief, Technical Inspection Branch, Region II
. R. Miller, Chief Technical Inspection Branch, Region III G. D. Brown, Chief, Technical Inspection Branch, Region IV H. E. Book, Radiological Safety Branch, Region V THRU:
L. J. Cunningham, Section Chief, Section B, Engineering and Technical Support Branch, DEQA, IE FROM:
J. E. Wigginton, Section B, Engineering and Technical Support Branch, DEQA, IE
SUBJECT:
AIRFLOW MEASUREMENT AND CONTROL FOR SUPPLIED-AIR RESPIRATORS In response to a Regional inspector's request, RES asked Los Alamos to clarify how can we be assured that the required minimum airflow is being provided to each individual air-line respirator user when.several users are sharing a standard air regulator / manifold supply. The enclosed Los Alamos National Laboratory memorandum answers this question and provides other suggestions for using supplied-air respirators.
As mentioned in the Los Alamos letter, the standard industry practice of using a single air regulator serving several identical respirator / hose-length units will provide the required air flow to
~
the individual users, assuming the proper (calibrated) regulated manifold pressure is maintained and the maximum hose length for each user is not exceeded.
However, if the individual users' (sharing the same air manifold) respirators or hose lengths are different, then required airflows cannot be assumed and must be measured.
IE is considering drafting an information notice on proper airline respirator use and would appreciate any Regional input concerning observed licensee problems / experiences in this area.
If you have any questions concerning this information, please contact RES's.
Lynette Hendricks (49-35970) or me (49-24907).
(h James E. Wigginton, Section B B610160473 820005 Engineering and Technical Support PDR I S<E Branch Misc PDR Assurance Office of Inspection and Enforcement
Enclosure:
See Page 2 AUG 9 1882.
1, i
Multiple Addressees
Enclosure:
Letter, Los Alamos to Ms. L. Hendricks, dated June 9, 1982 cc:
R. Nimitz, Region I N. DuBry, Region III Resident L. Higginbotham, IE W. Fisher, IE L. Hendricks, RES D. Collins, NRR p
l I
~
l l
l
-