ML19224C261
| ML19224C261 | |
| Person / Time | |
|---|---|
| Site: | 05000148 |
| Issue date: | 06/22/1979 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Kraft D KANSAS, UNIV. OF, LAWRENCE, KS |
| References | |
| NUDOCS 7907020022 | |
| Download: ML19224C261 (1) | |
Text
CEf1 TRAL FILES PDR:HQ
.p ""ec,
Ty o
UNITED STATES fjg{g 4
o,
, f. (f(7 h NUCLEAR REGULATORY COMMISSION
$ [~;y 7,I#,'
c i
s REGION IV d4g'((
~ kh 611 HYAN PLAZA oRIVE, SUITE 1000 S A AR LING TON, T E X AS 76012 h
N g
June 22, 1979 In Reply Refer To:
Docket No. 50-148 University of Kansas ATIN:
Dr. David Kraft, Dean School of Engineering Lawrence, Kansas 66044 Ge n tle.nen :
Iha enclosed IE Circular 79-09, is fc
_med to you for information.
If there ara any questions related to your understanding of the suggested actions, please notify the contact listed in the enclosure to the circular.
Sincerely,
/
Karl V. Seyfrit/ f Director
Enclosures:
1.
IE Circular No. 79-09 2.
List of IE Circulars Issued in Last 12 Months p Q' ^[ - [.'05 Q
79070200hI
LWITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, 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 Corraission (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 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-Mode.
Notice to Licensees:
Many major licensees use the types of Scott apparatus de-ibed above. Users of the devices should take the following actica:
1.
Establish a program for examination of the described respiratory devices ia accordance with the enclosed NIOSH r.uilgram; or 2.
Incorporate the provisions of the NIOSH mailgram into your current program for inspection of the described devices.
No written response to this Cucular is required.
If you require additional information regarding this subject, please contact the individual specified in the enclosed mailgram.
Enclosure:
Mailgram
,)
nn, Lv{/
UUU Ww v.m :-w a,, wwa - - DUPLICATE DOCUMENT sws~-
into system under: Entire document prev ANO_
h No. of pages:
~~.
.+
-. -