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MERCANTA

Footwear Standards Comparison Chart Impact Requirement Metatarsal Requirement Puncture Resistance Requirement Electric Shock Resistance Requirement Compression Requirement EN ISO: ” S B ” Safety toe footwear must be tested in accordance with EN ISO 20344 and meet the requirements of EN ISO 20345. After an impact energy of 200 joules is delivered, the clearance under the toe cap shall be the following: French Size English Size Min. Clearance < 36 < 3.3 12.5 mm 37-38 4-5 13.0 mm 39-40 5.5-6.5 13.5 mm 41-42 7-8 14.0 mm 43-44 8.5-10 14.5 mm 45 + 10.5 + 15.0 mm EN ISO: ” M ” Metatarsal Safety footwear must be tested in accor- dance with EN ISO 20344 and meet the requirements of EN ISO 20345. The minimum clearance at the moment of impact shall be: French Size English Size Min. Clearance < 36 < 3.5 37.0 mm 37-38 4-5 38.0 mm 39-40 5.5-6.5 39.0 mm 41-42 7-8 40.0 mm 43-44 8.5-10 40.5 mm 45 + 10.5 + 41.0 mm EN ISO: ” P ” Penetration Resistant Footwear must be tested in accor- dance with EN ISO 20344 and meet the requirements of EN ISO 20345. The force required to penetrate the sole unit shall not be less than 1,100 Newton. Metal insoles must not crack after 1 million flexes and show no more than 5 areas of corrosion smaller than 2.5 mm² when exposed to a 1 % salt solution for 7 days. EN ISO Electrical Insulation is determined according to the method described in EN ISO 20345. Footwear must comply with electrical class 0 or 00 for non-leather footwear. EN ISO: ” S B ” Safety toe footwear must be tested in accordance with EN ISO 20344 and meet the requirements of EN ISO 20345. The clearance under the toe cap at a com- pression load of 15,000 Newton shall be the following: French Size English Size Min. Clearance < 36 < 3.5 12.5 mm 37-38 4-5 13.0 mm 39-40 5.5-6.5 13.5 mm 41-42 7-8 14.0 mm 43-44 8.5-10 14.5 mm 45 + 10.5 + 15.0 mm ASTM: ” I ” Class 75 (I) footwear for men shall demonstrate a minimum interior height clearance of 12.7 mm (0.50 inch) during impact exposure to 101.7 J (75 ft-lb). Applies to steel, aluminium and composite protective caps. Class 75 footwear for women shall demonstrate a minimum interior height clearance and 11.9 mm (0.468 inch) during impact exposure of 101.7 J (75 ft-lb). Applies to steel, aluminium and composite protective caps. ASTM: ” Mt ” Metatarsal (Mt) protective footwear must first meet the Class 75 requirements for impact and compression resistant foot- wear. The height of the wax form used to measure metatarsal pro- tection of men’s footwear shall be a minimum of 25.4 mm (1.0 inch) after exposure of impact energy of 101.7 J (75 ft-lb). For women’s metatarsal protection there shall be a minimum of 23.8 mm (0.937 inch) after exposure of impact energy of 101.7 J (75 ft-lb). ASTM: ” PR ” Puncture Resistant (PR) insole must withstand a puncture force of 270 lbs., will not crack after 1.5 million flexes and show no signs of corrosion when exposed to a 5 % salt solution for 24 hours. ASTM: ” EH ” Electric Shock Resistant (EH) footwear must withstand the application of 18,000 volts at 60 Hz for 1 minute with no current flow or leakage in excess of 1.0 milliamperes under dry conditions. ASTM: ” C ” Class 75 (C) footwear for men shall demonstrate a minimum interior height clearance of 12.7 mm (0.50 in.) during exposure to a compressive force of 11,121 Newton (2500 ft-lb). Applies to steel, aluminium and composite protective caps. Class 75 footwear for women shall demonstrate a minimum interior height clearance of 11.9 mm (0.468 in.) during exposure to a compressive force of 11,121 Newton (2500 ft-lb). Applies to steel, aluminium and composite protective caps. NT NT AT AT T T T H 224 < 36 < 3.312.5 mm 37-384-513.0 mm 39-405.5-6.513.5 mm 41-427-814.0 mm 43-448.5-1014.5 mm < 36 < 3.537.0 mm 37-384-538.0 mm 39-405.5-6.539.0 mm 41-427-840.0 mm 43-448.5-1040.5 mm < 36 < 3.512.5 mm 37-384-513.0 mm 39-405.5-6.513.5 mm 41-427-814.0 mm 43-448.5-1014.5 mm

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