Explosive atmospheres - Gas detectors. Performance requirements of open path detectors for flammable gases Ingestion-build-111333 reclamation and modification in explosive

reclamation and modification in explosive atmospheres

BS 3F 70:1991 supersedes BS 2F 70:1983 which is withdrawn

With compliance and obedience to BS EN 17111

Manufacturers and suppliers of touch and close fasteners

Explosive atmospheres - Gas detectors. Performance requirements of open path detectors for flammable gases Ingestion-build-111333 reclamation and modification in explosive1 Scope This part of EN 6007929 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 metre to a few kilometres. Such equipment measures the integral concentration of the absorbing gas over the optical path in units such as LFL metre for flammable gases. NOTE 1