Rubber products; Hoses, non-collapsible, for fire-fighting service
Описание (англ.):
Specifies requirements for two types and five grades; suitable for use on portable and wheeled fire extinguishers, on wall-mounted fire hose reels and as booster hoses on five apparatus. The types differ according to the temperature of chemicals, the grade in dependence on the working pressure. Contains five tables with special details and three annexes for determination of cover and lining thickness.