What are the standards for national fire-resistant materials?
Fireproof material grade: Class A: incombustible building materials, almost no burning material. A1 level: non-combustible, can not afford to fire A2 level: non-combustible, to measure smoke, to qualified. B1 level: flame retardant building materials: flame retardant materials have a better flame retardant effect. It is in the air in case of fire or in the role of high temperature difficult to fire, it is not easy to spread, and when the fire destroyed after the fire immediately stop. B2 grade: flammable building materials: combustible materials have a certain role in flame retardant. In the air in case of fire or under high temperature will immediately fire burning, easy to lead to the spread of fire, such as wooden pillars, wooden truss, wooden beams, wooden stairs and so on. B3 level: flammable building materials, without any flame retardant effect, easy to burn, fire a great danger.
1, the design of fire safety norms 2, the fire alarm system construction acceptance norms 3, automatic sprinkler system construction 5, building fire facilities testing procedures listed above are the national standard or ministerial standards and local norms such as:
GB GB: Flame-retardant products and components in public places Flammability requirements and identification TB117: Elastic filling materials for cushioned furniture Flame-retardant fire test 16CFR16 Riverside hatching shelves Anticipated lamb rafts 34: Household cushioned furniture Flammability test British BS5852 , There are GB, ISO8191, TB116, ISO8191, TB116, NFPA260 (UFAC) and so on need to know more details, online search for fire resources network for inquiries
