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performance factors
A gas extinguishing system is a fire extinguishing system that extinguishes fire with the help of a gaseous extinguishing agent either through oxygen displacement (reduction of oxygen content) or physical effects (heat extraction)
This European Standard gives the definitions and general terms
BS ISO 14046 is for any organization
Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow Ingestion-build-65808 performance factorsBS EN 1717: 2000 Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow BS EN 1717 deals with the means to be used to prevent the pollution of potable water inside premises and the general requirements of protection devices to avoid pollution by backflow. The hygiene protection specifications of this standard are applicable to all the standards for systems or appliances
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