Three levels of flame retardant clothing classification

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flame retardant clothing flame retardant protective clothing

Flame-retardant clothing refers to a type of protective clothing that can prevent itself from being ignited, flaming and smoldering for a certain period of time after coming into contact with flames and hot objects. In terms of actual use requirements, flame-retardant protective clothing must be washable, not melt when burned, and flame retardants are harmless to the human body. Long-term contact between the fabric and the skin will not cause dermatitis or cancer. As for flame-retardant protective clothing, Those that release toxic gases or thick smoke when burning will endanger rescuers and are also prohibited. The three classifications of flame-retardant protective clothing are as follows: 1. Class A is suitable for users to wear flame-retardant clothing in situations where there are open flames, emit sparks, or operate molten metal accessories with radiant heat and convective heat. The thermal protection coefficient index of Class A flame retardant protective clothing: direct skin contact: ≥126TPP/(kW·s/m2), the gap between the skin and clothing: ≥250, the number of washing times is 50 times, the afterburning time is ≤2S, Smoldering time ≤ 2S, damaged length ≤ 50mm, no melt dripping. 2. Class B flame retardant clothing is suitable for users to wear in places where there are open flames, sparks, flammable substances and fire hazards. The number of washing times for Class B flame-retardant protective clothing is 50 times, the afterburning time is ≤2S, the smoldering time is ≤2S, the length of damage is ≤100mm, and there is no melting or dripping. 3. Class C is suitable for flame-retardant clothing worn by users for temporary or non-long-term use in places where there are flammable substances and there is a risk of fire. The number of washing times for Class C flame-retardant protective clothing is 12 times, the afterburning time is ≤5S, the smoldering time is ≤5S, the length of damage is ≤150mm, and there is no melting or dripping.
：Textile

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