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EN ISO 11611 Protective clothing for use in weldi
ng and allied processes. EN 11611 specifies material performance and design requirements for clothing developed to protect against heat and flame and welding. Essentially the welding version of EN 11612, this norm defines protection against ignition from various heat sources, such as open flames, molten iron splash and contact heat. In addition, garments certified according to EN 11611 protect against radiant heat from the arc as well as minimize the possibility of electrical shock by short-term, accidental contact with live electrical conductors. EN 11611 features two classes, Class 1 and Class 2, depending on the type of welding technique used. Class 1 comprises less hazardous welding techniques and situations, lower levels of spatter (splashes of molten metal) and radiant heat, whereas Class 2 includes more hazardous welding techniques and situations, higher levels of spatter and radiant heat. The norm also includes several design requirements, such as that suits should completely cover the upper and lower torso, neck, arms and legs, and that external pockets should be covered by flaps at least 20 mm wider than the opening of the pocket. EN 13034 Protective clothing against liquid chemicals. Specifying the requirements for clothing offering limited protection against liquid chemicals, EN 13034 targets professions and situations in which the wearer relatively easily can step out from the risk environment and quickly remove the garment. Typical professions include truck drivers who drive gasoline transports and service technicians who occasionally handles lubricants, acids etc. For tougher environments with higher risks, higher protection garments are required. The classification Type 6 refers to full chemical overalls whereas Type PB refers to partial body protection, for example jackets and trousers. The norm’s design requirements state that the garment should include no features that may collect liquid chemicals and hold them onto the fabric surface (such as unprotected pockets etc). NOTE! Since liquid chemicals often are flammable, the user should wear antistatic clothing for optimal protection as well as flame retardent clothing. EN 13034, EN ISO 11612 and EN 1149 make a great combination for this purpose. EN ISO 11612 Protective clothing against heat and flame. EN 11612 specifies performance for clothing designed to protect from heat and/or flame (not including protection for firefighters and welders). The norm indicates protection against ignition from various heat sources: (A) limited flame spread, A1 surface ignition and A2 edge ignition, according to test method ISO15025; (B) convective heat and open flames, according to test method ISO9151; (C) radiant heat, according to test method ISO6942; (D) molten aluminum splash, according to test method ISO9185; (E) molten iron splash, according to test method ISO9185; and (F) contact heat (flat iron, hot plate etc.), according to test method ISO12127-1. Garments certified according to EN 11612 should be used together with other protective clothing that meets the reEN ISO 14116 Protective clothing against flame. EN 14116 specifies the performance of protective clothing for workers exposed to occasional brief contact with open flames with no other thermal risks. This norm is a “lighter” version of EN 11612 and is relevant for garments without full-length sleeves and legs as well as accessories such as hats, beanies, balaclavas, socks, underpants etc. EN 14116 is available in three different indexes – 1, 2 and 3, where Index 3 stipulates the highest protection requirements. Materials classified as Index 1 must not be worn next to skin and garments that contain Index 1 materials should only be worn on top of Index 2 or 3 garments. quirements of EN 11612. Furthermore, the norm requires full protection of arms and legs, which means t-shirts and shorts do not meet the EN 11612 requirements. However, the user can wear clothes certified according to EN 14116 (which does not have the same design requirements) underneath for enhanced protection. To ensure full protection, the head, neck, hands and feet must be covered with other approved protective clothing. Note that garments classified as underwear should always be worn together with outer garments that meet the protection requirements of EN 11612. The underwear will not provide the right level of protection on their own. EN 1149-5 Protective clothing electrostatic properties. EN 1149-5 specifies material performance and design requirements for protective clothing with electrostatic properties. These protective clothes are designed to avoid the risk of incendiary discharge (the formation of sparks), when for example an elbow or a knee is brushed against a wall or similar surface/object. This is vital when working with flammable materials such as gas or gasoline. The material performance is based on the material’s surface resistivity, electrical resistance and charge decay. In order to 190 PPE be fully protected, all non-complying materials and conductive parts (zippers etc) should be fully covered. In addition, the person must be properly earthed by wearing shoes that allow static electricity to dissipate into the ground. NOTE! EN1149-5 certification is not sufficient for work with fine electronics and similar sensitive electronics (microchips, printed circuit boards, cell phone assembly, etc). For this kind of work, you need protective clothing certified according to EN 61340.