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Journal: Pozharovzryvobezopastnost/Fire and Explosion Safety (Vol.22, No. 1)

Publication Date:

Authors : ;

Page : 7-14

Keywords : legal regulation; fire extinguishing powders; powder fire extinguishers; fire extinguishing efficiency; the rank of the model; technical requirements; test methods; the humidity of the wood; wind speed; the camera for testing; waterproof; water resistant.;

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The article presents a comparative analysis of the requirements of international, European, North American standards and Russian Standards on dry chemical powders and held fire extinguishers. World manufacturers of powder fire extinguishers systematically increase the fire extinguishing ability of powder compositions on the basis of ammonium phosphates, which is reflected in the regulations for the suppression of model of fire class A and B. The results of the analysis demonstrate lagging behind the requirements of fire extinguishing ability of the domestic powder fire extinguishers from the world analogues. The domestic market is not interested in the appearance of fire extinguishers with indicators on fire extinguishing ability, going beyond the requirements of State Standard. Using domestic regulatory weakness, a number of manufacturers of fire extinguishing powders delivers on the market of relatively low-quality powder class BC (carbonate or chloride basis) under the guise of high-quality powder-class ABC (phosphate basis) than misleading and manufacturers of fire extinguishers, and buyers. When analyzing the standards of Europe and North America revealed that the development of foreign powder formulations and fire extinguishers is connected with increase of requirements imposed by the regulatory documents and their detail. The most important factors in carrying out fire tests powders for the suppression of model centers of A class should recognize the humidity of the wood, the time of burning, wind speed and a number of other factors influencing the frequency of occurrence of fire tests of fire extinguishing powders and fire extinguishers. The authors suggest raising the requirements of the Russian State Standard. This will remove the regulatory loopholes for the supply of low quality of fire extinguishing powders. The article contains proposals on the improvement of domestic normative documentation in the field of powder fire extinguishing with the purpose of increase of fire extinguishing ability of the domestic powder fire extinguishers.

Last modified: 2019-10-22 17:48:40