Technical Requirements For Flame Retardant Clothing
Technical requirements for Flame Retardant Clothing
People's lives and production are all and electrostatic contact, electrostatic directly or potentially from all aspects of the human to bring varying degrees of harm. According to expert analysis, gunpowder, chemical, pharmaceutical, oil and other workplace fire accidents, mostly due to human activities generated by static electricity exceeds the safety limits, accidental discharge spark triggered. The generation of static electricity is closely related to the material of the clothing, the strength of the activity, the type of labor tool used, the conductivity of the ground, and the temperature and humidity of the surrounding environment. For a long time, people use grounding, shielding, and other ways to eliminate the harm of static electricity. Flame-retardant clothing to provide the body with static shielding, eliminate or reduce the electrostatic hazards of the function.
Flame-retardant clothing technical requirements, including structure, anti-static performance, strength of three aspects.
Clothing production structure, a direct impact on its anti-static effect, therefore, the structure of flame-retardant clothing design must ensure that:
1. Clothing generally do not use metal accessories, must use metal buttons, zippers, should be strictly guaranteed when wearing metal accessories are not exposed, so as not to discharge sparks, causing a fire, explosion.
2. Clothing should use all anti-static fabric, do not use the lining. Must use the lining (pockets, reinforcing cloth, etc.), the lining exposed area should be less than 20% of the total area of the anti-static clothing exposed; on the cold clothing or other special requirements of the anti-static clothing, lining exposed area more than all anti- Exposure to the area of 20%, should be made of mask and lining removable. Two with the choice
Flame retardant clothing is mainly used for fire and dangerous places. Standard (GB12014-1998 Appendix D) the gas explosion hazard location according to the frequency of explosive substances, duration and risk level is divided into:
Level 0 area: Under normal circumstances, the explosive gas mixture continuously, short time frequent occurrence or long time existence of the place.
Level 1 area: Under normal circumstances, explosive gas mixture may occur in the place.
Level 2 area: Under normal circumstances, the explosive gas mixture can not appear, only in the case of occasional short time occasionally appear.
If the minimum ignition energy of the combustible is less than 0.25mJ, it should be equipped with flame retardant clothing. Common minimum ignition energy at 0.25 mJ combustibles are alkylene propane hydrocarbons, acrylonitrile, diethyl ether, hydrogen, carbon disulfide, furan, benzene, methanol and the like.
Three production of flame retardant clothing technical requirements
To be equipped with fire-retardant clothing; A02 class of flammable dust operations, you can use flame-retardant clothing. "Labor protection supplies with the standard (Trial)" (State Economic and Trade Commission Safety  189), also requires gas station operators, liquefied petroleum gas tankers and similar types of work, must be equipped with flame retardant clothing.
Flame-retardant clothing has a certain anti-static properties of durability, therefore, the choice of flame-retardant clothing also need to work according to the workplace of the pollution requirements of the washing requirements, select the appropriate anti-static level of uniforms
Flame-retardant clothing for fire and explosion sites, it should usually choose to have flame retardant properties of fire-retardant clothing for workers to provide more reliable protection. Gas station operators and similar types of use of fire-retardant clothing, should also have anti-oil effect.