Explosive atmospheres - Gas detectors. Performance requirements of open path detectors for flammable gases1 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

yachts and other craft

ISO/TS 22491 on the determination of carbon monoxide (CO) in waterpipe tobacco is applicable to:

Designers of rope pulleys

The optical circuit board are in which optical connectors are mounted in parallel and the connectors are mutually connected by optical waveguides

This standard deals with all significant hazards

where economically feasible

PD IEC TR 61282-7 on a chromatic dispersion of optical fibres is relevant to:

A side hung projecting reversible hinge is a mechanism consisting of sliding rails and moving arms fitted into the upper and lower sections of the window frame

you can manufacture good quality Polyester non-woven fibreglass reinforced laminated sheet used in interconnection structure

Operations after welding

Woven wire meshwork

Software development tools