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MERCANTA

www.mercanta.com 2.0 Flame Resistant Garments Flame resistant garments are designed to protect workers from burns caused by flash fires. They should be worn any time when works have to be carried out in environments subject to potential combustion or flammability. The use of flame resistant garments reduces the risk of sustaining dangerous third-degree burns. Therefore, flame resistant garments provide the primary level of personal protection for industrial use, such as in oil refineries or chemical plants. For fire fighting personnel, flame resistant stationwear adds a critical layer of secondary protection. Fire fighting garments are certified as to EN 469 and are available from specialised suppliers, such as our associates, Rosenbauer International AG. The following definitions are presented by the NAUMD (North-American Association of Uniform Manufacturers and Distributors): Flame Resistant The property of a material whereby combustion is prevented, terminated or inhibited following application and subsequent removal of an ignition source. Flame resistance can be an inherent property of the textile material or may be imparted by specific treatment. Flame Retardant A chemical treatment applied to a fibre or material to reduce flammability. Flame retardant materials are not inherently flame resistant. Arc Essentially an electric arc is the spark that jumps between any gap created in an electrical system: this can be the bolt of lightning jumping between a cloud and a point of earth or more usually the tiny spark that can occur when a light switch is flicked on or off, which is why you should not actuate any switch if you suspect a gas leak. 2.1 Flame Resistant Cotton Garments Flame Resistant Cotton is cheaper than inherent FR-fabrics and its flame resistance is limited. The chemical impregnation of more sophisticated cotton fabrics will not wash out after several wash cycles so that the flame retardancy can be maintained for the lifetime of the garment. Flame Resistant Cotton soaks body perspiration and will transfer body heat inside out so that it is much more comfortable than inherent FR-fabrics. Therefore, it is designed for all day use and for workers not immediately exposed to the danger of flash-fires at all times. Moreover, Flame Resistant Cotton apparel form the perfect protective garment for welders since the fibre structure of cotton protects better from sparks than other fabrics like Nomex. It will, however, leave some burn marks in the fabric. The following types of Flame Resistant Cotton garments are offered by Mercanta: ➤ Indura, as manufactured by Messrs. Topps Safety Apparel Inc., USA. This fabric is certified to EN 470 as well as NFPA 70E and meets all performance requirements of OSHA. The fibre impregnations of this fabric cannot be washed out and will stay for the lifetime of the garments, thus providing its flame resistance characteristics at all times. ➤ Ultrasoft, a further development of Indura that features a 12 % high tenacity nylon content. Ultrasoft features basically the same quality standards as Indura, in addition it significantly increases wear life of the garment without compromising the comfort of cotton. It also offers excellent protection from both electric arc exposure and flash fire exposure. Ultrasoft is certified to NFPA 70E with excellent arc ratings. ➤ Daletec Antistat Daletec Antistat consists of 98 % cotton and 2 % carbon fibres, which are fibre impregnated with Pyrovatex, a durable flame retardant product of CIBA. It is tested for resistance against flame flash and electrical arcs. Daletec Antistat comes with a sanforised surface and offers the wearing comfort of longfibre cotton, including the absorption and transport of moisture. Daletec Antistat is certified to EN 11612, EN 1149 and Oekotex 100. Since it has been blended with 2 % carbon fibres, Daletec Antistat becomes permanent antistatic. 2.2 Flashguard Garments Flashguard is a Japanese high-tech fabric, which is inherently flame resistant, provides anti-static properties and the comfort of cotton. The fibre mix is 54 % Modacrylic, 35 % cotton, 10 % Aramid and 1 % Carbon fibre. The Modacrylic is inherently flame-resistant, the Aramid provides resistance against heat and the Carbon fibre makes the fabric anti- static. The surface of Flashguard is very smooth making this fabric extremely comfortable to wear. Its cotton content absorbs moisture well. Flashguard offers good colour fastness after laundry and a fabric weight that is user friendly in any climate. It is available in either 6,0 oz (200 g/m²) or 9,0 oz (300 g/m²). Flashguard is third party certified to meet the requirements of EN 11612, EN 1149-5, EN 61482-1 and NFPA 2112. Upon demand, NFPA - certified coveralls can be made of Flashguard. 171

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