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From lowest (Least flame-retardant) to highest (Most flame-retardant): HB : slow burning on a horizontal specimen; burning rate < 76 mm/min for thickness < 3 mm or burning stops before 100 mm V-2 : burning stops within 30 seconds on a vertical specimen; drips of flaming particles are allowed.
Flame retardants are a diverse group of chemicals that are added to manufactured materials, such as plastics and textiles, ... and slowing the reaction rate. ...
A fire-resistance rating typically means the duration for which a passive fire protection system can withstand a standard fire resistance test. This can be quantified simply as a measure of time, or it may entail other criteria, involving evidence of functionality or fitness for purpose.
Most cars in the United States use flame retardants in several areas of the vehicle cabin based on Federal Motor Vehicle Safety Standard FMVSS 302. ... they only slow the rate at which they burn ...
Research on fire-retardant polymers was bolstered by the need for new types of synthetic polymers in World War II. The combination of a halogenated paraffin and antimony oxide was found to be successful as a fire retardant for canvas tenting. Synthesis of polymers, such as polyesters, with fire retardant monomers were also developed around this ...
Fire-retardant materials should not be confused with fire-resistant materials. A fire resistant material is one which is designed to resist burning and withstand heat. An example of a fire-resistant material is one which is used in bunker gear worn by firefighters to protect them from the flames of a burning building.
A DC-10 dumps fire retardant on Mandeville Canyon Road on Jan 11, 2025, during a battle to save the homes in the Brentwood community from the Palisades Fire that started on Jan. 7.
The discovery of high levels of heavy metals in a popular fire retardant has added to long-running concerns from environmentalists. Wildfire retardant is laden with toxic metals, USC study finds ...