ML19248C905
| ML19248C905 | |
| Person / Time | |
|---|---|
| Site: | 07000008 |
| Issue date: | 06/22/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Ungar E Battelle Memorial Institute, COLUMBUS LABORATORIES |
| References | |
| NUDOCS 7907050428 | |
| Download: ML19248C905 (1) | |
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NUCLEAR REGULATORY COMMISSION TIC
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GLEN E LLYN, ILLINOls 60137 JUN 2 21979 Docket No. 70-08 Battelle Columbus Laboratories ATTN:
Dr. E. W. Ungar, Director 505 King Avenue Columbus, Oli 43201 Gentlemen:
The enclosed IE Circular No. 79-09, is forwarded tu you for informa-tion.
If there are any questio-' related to your understanding of the suggested actions, please notify the contact li.,ted in the enclosure to the circular.
Sincerely, James G. Kel er Director
Enclosure:
IE Circular No. 79-09 cc w/ encl:
M r. 11. L. To y,
License Coordinator Central Files PDR NSIC TIC
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e U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT REGION III June 22, 1979 IE Circular No. 79-09 OCCURRENCES OF SPLIT OR PUNCTURED REGULATOR DIAPHRAGMS IN CERTAIN SELF-CONTAINED BREATHING APPARATUS Description of Circumstances:
The Nuclear Regulatory Commission (NRC) has been informed by mailgram (copy enclosed) from the National Institute of Occupational Safety and Health (NIOSH) of the high rate of regulator diaphragm failures in the Scott Air Pak II/ IIA and Presur-Pak II/ IIA self-contained breathing apparatus. The failures, ranging from pin holes in the diaphragm to conplete diaphragm rupture, have been identified in about 10 percent of the units by the NIOSH field survey.
Tests of the Scott apparatus by NIOSH showed reduced respiratory protection in the Demand-Mode and a loss of service time (but no loss of protection) in the Pressure De=and-Mode.
Notice to Licensees:
Many major licensees use the types of Scott apparatus described above. Users of the devices should take the following action:
1.
Establish a program for examination of the described respiratory devices in accordance with the enclosed NIOSH mailgram; or 2.
Incorporate the provisions of the NIOSH ma11 gram into your current program for inspection of the described devices.
No written response to this Circular is required.
If you reouire additional information regard:ng this subject, please contact the individual specified in thu enclosed mailgram.
Enclosure:
1.
Mailgram 2.
List of IE Circulars issued in last twelve months DUPLICATE DOCUMENT t Previously entered
.into sys e under 2
ANO_
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