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EVS-EN 60079-29-4:2010

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

General information

Valid from 07.06.2010
Base Documents
IEC 60079-29-4:2009; EN 60079-29-4:2010

Standard history

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This part of IEC 60079-29 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.

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