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MERCANTA

www.mercanta.com Static Dissipative Requirement Conductive Protection Requirement EN ISO: ” A ” Antistatic Footwear must be tested in accordance with EN ISO 20344 and meet the requirements of EN ISO 20345 after conditioning in both wet and dry conditions. Electrical resistance shall be above 105 ohms (0.1 megohms) and less than or equal to 109 ohms (1,000 megohms). >100 kΩ and < 1000 MΩ EN ISO The electrical resistance of conductive footwear must be tested in accordance with EN ISO 20345 after conditioning in a dry atmosphere and cannot be greater than 100,000 ohms (W). EN ISO EN safety footwear must be tested by an EN certifying body. EN certification encompasses far more than just the safety aspects of the shoe. All components are individually tested as well as the fit and comfort of the footwear. EN has several categories of safety footwear depending on performance and the footwear is labelled accordingly. The footwear does not need to be retested unless the standard is revised or the platform construction changes. ASTM: ” SD ” Static dissipative (SD) footwear shall reduce the accumula- tion of excess static electricity while maintaining a level of electrical resistance between 106 ohms (1 megohm) and 108 ohms (100 megohms). ASTM: ” Cd ” Conductive (Cd) footwear shall dissipate static electricity from the body to reduce the possibility of ignition of volatile compounds. Electrical resistance must range between 0 to 500,000 ohms. ASTM ASTM safety footwear must be tested by a third party laboratory. The footwear does not need to be retested unless the standard is revised or the platform construction changes. Temper The general firmness of a particular leather, usually rated on a scale from 1 the firmest to 10 the softest. Weight Thickness of the leather, which ranks from thinnest to thickest: LM, M, HM, H, HH, PHH, HHH. Water-Resistant Leather that has been tanned to resist moisture penetration, allowing water and other liquids to run off in order to keep the foot dry. Waterproof Leather that has been tanned and treated so that water cannot penetrate and the foot is kept dry under all conditions. Red Wing Waterproof: This system uses a 3-layer approach to keep feet dry. 1. Linings help move moisture away from the foot to keep it dry. 2. Foam provides cushioning and a comfortable fit. 3. A waterproof bootie is a barrier to keep water out. Tricot, a protective material, is applied to the outside of the bootie to ensure a complete waterproof system. GORE-TEX® : Red Wing uses GORE-TEX® for the ultimate in comfort and protection. The GORE-TEX® membrane blocks moisture from the outside, while allowing moisture inside to evaporate. GORE-TEX® has over 9 billion pores per square inch that prevent water from getting to your feet while allowing sweat vapour to pass right through, keeping your feet dry and comfortable in all conditions. Full Grain The outermost layer of leather whose grain has not been corrected or reduced. This is the highest quality leather available. Acid Resistant Specially treated for the unique elements associated with farms, including manure, urine, fertilizers and herbicides. Polishable Leather that can be polished, is easily cleaned and has a tight surface to reduce absorption. Insulation protects the body from cold by trapping the body’s own heat and preventing it from escaping. 3MTM ThinsulateTM Ultra Insulation The ultimate insulation for cold weather boots, 3MTM ThinsulateTM Ultra Insulation is thin, warm and lightweight, with the durability to withstand long hours of hard wear and keep feet warm even in damp conditions. Other Requirements UPPERS are the combination of materials that cover and support the top of the foot. Depending on the style, these parts may include leather, linings, waterproofing, insulation, hard- ware, laces and toe protection. Each of the components of the Upper serve a specific purpose. 225

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