GB/T 20991-2007 Personal protective equipment—Test methods for footwear

GB/T 20991-2024 Foot protection—Test methods for footwear

GB 21146-2007 Personal protective equipment—Occupational footwear GB 21147-2007 Personal protective equipment—Protective footwear GB 21148-2007 Personal protective equipment—Safety footwear QB/T 2711 GB/T 308-2002 Rolling bearings—Steel balls GB/T 308.1-2013 Rolling bearings—Balls—Part 1:Steel balls GB/T 308.2-2010 Rolling bearings—Balls—Part 2:Ceramic balls GB/T 528-1998 Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties GB/T 528-2009 Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties GB/T 529-1999 Rubber,vulcanized or thermoplastic—Determination of tear strength (Trouser,angle and crescent test pieces) GB/T 529-2008 Rubber,vulcanized or thermoplastic—Determination of tear strength(Trouser,angle and crescent test pieces) GB/T 1690-1992 Rubber, vulcanized-Determination of the effect of liquids GB/T 1690-2006 Rubber,vulcanized or thermoplastic—Determination of the effect of liquids GB/T 1690-2010 Rubber,vulcanized or thermoplastic—Determination of the effect of liquids GB/T 2411-1980 Plastics—Shore hardness test GB/T 2411-2008 Plastics and ebonite—Determination of indentation hardness by means of a durometer(shore hardness) GB/T 5723-1993 Rubber, vulcanized or thermoplastic—Determination of dimensions of test pieces and products for test purposes GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 9867-1988 Rubber—Determination of abrasion resistance using a rotating cylinderical drum device GB/T 9867-2008 Rubber,vulcanized or thermoplastic—Determination of abrasion resistance using a rotating cylindrical drum device HG/T 2581.1-2022 Rubber or plastic-coated fabric - Determination of tear resistance - Part 1: Constant speed tearing method HG/T 2581.1-2009 Rubber or plastic-coated fabric - Determination of tear resistance - Part 1: Constant speed tearing method QB/T 2710-2018 Leather Physical and Mechanical Tests Determination of Tensile Strength and Elongation Rate QB/T 2716-2018 Preparation of chemical test samples for leather QB/T 2724-2018 Leather Chemical Test pH Determination QB/T 2724-2005 QB/T 2724-2005 Leather Chemical Test pH Determination HG/T 2581-1994 The determination of the resistance to tearing of rubber or plastic-coated fabrics QB/T 2710-2005 Leather Physical and Mechanical Tests Determination of Tensile Strength and Elongation Rate QB/T 2716-2005 Leather-Preparation of chemical test samples HG/T 2581.2-2009 Rubber or plastic-coated fabric - Determination of tear resistance - Part 2: Impact pendulum method

ISO 20344:2004