IEC 60079-29-4 Ed. 1.0 b(2009)

Explosive atmospheres - Part 29-4: Gas detectors - Performance requirements of open path detectors for flammable gases

This document has been re-assessed by the committee, and judged to still be up to date.

IEC 60079-29-4:2009 specifies performance requirements of equipment for the detection and measuring of flammable gases or vapours in ambient air by measuring the spectral absorption by the gases or vapours over extended optical paths, ranging typically from one meter to a few kilometres. Such equipment measures the integral concentration of the absorbing gas over the optical path in units such as LFL meter for flammable gases. This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of this standard shall take precedence. The contents of the corrigendum of August 2010 have been included in this copy.

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Publishing information

Status: CURRENT

Published: 10/11/2009

Pages: 67

Committee:  31

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