ISSN: 1546-962X
Page Count: 5

ASTM G 175 Interlaboratory Study on Forced Ignition Testing

Smith, SR
Mechanical Engineer, Honeywell Technology Solutions, Inc., NASA Johnson Space Center White Sands Test Facility, Las Cruces,NM

Stoltzfus, JM
Mechanical Engineer, NASA Laboratories Office, NASA Johnson Space Center White Sands Test Facility, Las Cruces,NM

(Received 26 October 2005; accepted 17 April 2006)

Abstract

ASTM G 175 is a standard test method for evaluating the ignition sensitivity and fault tolerance of oxygen regulators used for medical and emergency applications. To show the ASTM G 175 test method was repeatable at different laboratories, a series of interlaboratory tests were performed on medical oxygen regulators in late 2002. These tests were performed on six regulator designs at three laboratories. Three of the regulator models employed a compressed gas association (CGA) 870-style connection and the other three regulator models used a CGA 540-style connection. Five of the regulators were commercially available and the other one was a CGA 870-style regulator that was intentionally designed to tail the test. The results of the round robin tests are presented and discussed.

Keywords:
G 175, medical regulator, ignition pill, fault tolerance

Paper ID: JAI13542
DOI: 10.1520/JAI13542
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