GB/T 2891-1995: Performance test methods for facepiece of filfer type respirator

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Scope

This Standard specifies the air leakage coefficient for the wearing, actual dead space,
field of view, assembly air tightness, exhalation valve air tightness, exhalation valve
resistance to air, lens transmittance (transmittance ratio) and facepiece inhalation
resistance and other performance test methods for filter type respirators.
This Standard applies to the test and evaluation of the performance of filter type
respirators (hereinafter referred to as facepieces); it also applies, as a reference, to other
related products.

Basic Data

Standard ID	GB/T 2891-1995 (GB/T2891-1995)
Description (Translated English)	Performance test methods for facepiece of filfer type respirator
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	C73
Classification of International Standard	13.340.30
Word Count Estimation	14,126
Date of Issue	6/28/1995
Date of Implementation	1/1/1996
Older Standard (superseded by this standard)	GB 2891.1-1982; GB 2891.2-1982; GB 2891.3-1982; GB 2891.4-1982; GB 2891.5-1982; GB 2891.6-1982
Quoted Standard	GB/T 2410; GB 2426; GB/T 528
Regulation (derived from)	Announcement of Newly Approved National Standards 2009 No. 4 (No. 144 overall)
Issuing agency(ies)	State Bureau of Technical Supervision