ML19224C262
| ML19224C262 | |
| Person / Time | |
|---|---|
| Site: | University of New Mexico |
| Issue date: | 06/22/1979 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Whan G NEW MEXICO, UNIV. OF, ALBUQUERQUE, NM |
| References | |
| NUDOCS 7907020023 | |
| Download: ML19224C262 (1) | |
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June 22, 1979 In Reply Refer To:
Docket No. 50-252 The University of New Mexico ATTN:
Dr. G. A. Whan Reactor Supervisor Chemical & Nuclear Engineering Departraent Albuquerque, New Mexico 37131 Gentlemen:
The enclosed IE Circular 79-09, is forwarded to you for information.
If there are any questions related to four understanding of the suggested actions, please notify the contact listed in the enclosure to the circular.
Sincerely,
(
u Karl V. Seyfrit /,
Director
Enclosures:
1.
IE Circular No. 79-09 2.
List of IE Circulars Issued in Last 12 Months
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UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGT0h, D.C.
20555 IE Circular No. 79-09 Date:
June 22, 1979 Page 1 of 1 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 f rom pin holes in the diaphragm to complete 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 Demand-Hode.
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 examinatioe of the described respiratory devices in accordance with the enclor.ed NIOSd mailgram; or 2.
Incorporate the provisions of the NIOSH mailgram into your current program for inspection of the described devices.
No written response to this Circular is required.
If you require additional information regarding this subject, please contact the individual specified ia the enclosed mailgram.
Enclosure:
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UUV w-up--= m-ea e s ma DUPLICATE DOCUM 9T Entire document previously entered into system under:
-740 629C 237 ANO No. of pages:
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