Flame retardant overalls test standards

     Flame-retardant overalls are very important personal protection standards and have been widely used in places with open flames, sparks and flammable materials such as petroleum, chemical, fire protection, metallurgy and shipbuilding, and are in great demand. In the flame retardant market demand expanded at the same time, the standards of flame retardant also introduced a lot. Some customers know little about it. Flame retardant overalls can reach the standard number and the quality and price of protective clothing is also proportional. Some customers are not demanding or detailed, and even some brands of fabric buyers are not fully aware of the physical performance testing standards, easily be fooled by fabric suppliers, of course, the quality requirements of the quality and price also have a great relationship .

    The general standard flame retardant is divided into the United States and European standards. The two standards are still very different. The following provides detailed standards for your reference.
    American overalls flame retardant test standards
    The National Fire Protection Association has developed a series of testing standards for the performance of different types of protective clothing, the most important of which are NPFA 1971 and NFPA 2112.
     NPFA 1971 fire and fire-fighting suit with a full set of test standards, NFPA 2112 industrial flame-retardant protective clothing standards in the apparel fabric test methods are used ASTM D6413-2008 standard vertical combustion method.
    Fabric testing to meet the following requirements: (1) The average length of carbonization can not exceed 100 mm. (2) The average burn-in time can not exceed 2s. (3) After the sample is ignited, there should be no melt dripping. For multi-layer materials, each layer needs to be individually tested and passed the above requirements. The United States also developed a more complete standard system of heat transfer performance test and combustion dummy test, and continuously improved existing standards to continuously test the real combustion environment to test and study the flame retardant properties of protective clothing. leading position.
    European protective clothing flame test standards
    Current standards are EN ISO 11611: 2007, EN ISO 11612: 2008, EN ISO 14116: 2008 / AC: 2009 and EN469: 2006.
    Test methods include surface burning and bottom burning two test methods. Depending on the type of material, one or both may be chosen for testing. For surface burning tests, the material must meet the following requirements: (1) Any test specimen which has been ignited shall not burn to the fabric edges or the upper ends of the fabric. (2) No test specimen can be broken after it has ignited. (3) Any test sample shall not have a burning drop or a melt falling after ignition. (4) The average burn-in time must be less than or equal to 2s. (5) The average smoldering time must be less than or equal to 2s. For the bottom flammability test, the material must meet all of the above requirements other than those specified in (2) above. EN ISO11611 flame retardant safety rating is divided into Class 1 and Class2, two levels of the same technical indicators, the material must meet the surface and bottom of the combustion requirements.
    EN ISO 11612 Protective clothing for workers exposed to high temperatures and EN ISO 14116: 2008 Protective clothing - Thermal insulation and fire protection - Materials, components and clothing that limit the spread of flames.
Xinxiang City Yulong textile specializing in the production of flame-retardant fabrics, fluorescent fabrics, anti-arc fabric and other functional fabrics and custom fire-retardant clothing, fluorescent clothing and other multi-functional clothing.