GB 5135.17-2011 Automatic sprinkler system—Part 17:Pressure reducing valves

GB 5135.14-2011 Automatic sprinkler systems—Part 14:Preaction devices GB 5135.21-2011 Automatic sprinkler system—Part 21:Inspector's test connection

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods 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 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 5135.11-2006 Automatic sprinkler system—Part 11:Grooved couplings and fittings GB/T 7306.1-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 1:Parallel internal and taper external threads GB/T 7306.2-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2:Taper internal and external threads GB/T 7759-1996 Rubber, Vulcanized or thermoplastic—Determination of compression set at ambient elevated or low temperatures GB/T 7759.1-2015 Rubber,vulcanized or thermoplastic—Determination of compression set—Part 1:At ambient or elevated temperatures GB/T 7759.2-2014 Rubber,vulcanized or thermoplastic—Determination of compression set—Part 2:At low temperatures GB/T 9112-2000 Types and parameters for steel pipe flanges GB/T 9112-2010 Types and parameters for steel pipe flanges GB/T 9969-2008 General principles for preparation of instructions for use of industrial products GB 9969.1-1998 General principles for preparation of instructions for use of industrial products GB/T 12220-1989 General purpose industrial valves—Marking GB/T 12220-2015 Industrial valves—Marking GB/T 17241.6-1998 Integral cast iron pipe flanges GB/T 17241.6-2008 Integral cast iron flanges HG/T 2580-2022 Determination of tensile strength and elongation at break of rubber or plastic-coated fabrics HG/T 2580-2008 Rubber or plastic-coated fabric - Determination of tensile strength and elongation at break HG/T 2580-1994 Determination of tensile strength and tensile extension of rubber or plastic coated fabrics GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB 5135.11-2025 Automatic sprinkler systems—Part 11:Grooved pipe couplings and fittings