CJ/T 324-2010 Vacuum breakers

GB/T 6461-2002 Methods for corrosion testing of metallic and other inorganic coatings on metallic substrates—Rating of test specimens and manufactured articles subjected to corrosion tests GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 196-2003 General purpose metric screw threads—Basic dimensions GB/T 1220-1992 Stainless steel bars GB/T 1220-2007 Stainless steel bars GB/T 4334-2008 Corrosion of metals and alloys—Test methods for intergranular corrosion of stainless steels GB/T 4334-2020 Corrosion of metals and alloys—Test methods for intergranular corrosion of austenitic and ferritic-austenitic (duplex) stainless steels GB/T 4334.1-2000 Method of 10 per cent oxalic acid etch test for stainless steels GB/T 4334.2-2000 Method of ferric sulfate-sulfuric acid test for stainless steels GB/T 4334.3-2000 Method of 65 percent nitric acid test for stainless steels GB/T 4334.4-2000 Method of nitric-hydrofluoric acid test for stainless steels GB/T 4334.5-2000 Method of copper sulfate-sulfuric acid test for stainless steels GB/T 4334.6-2000 Method of 5 per cent sulfuric acid test for stainless steels GB/T 4334.6-2015 Test method for stainless steels in 5% sulfuric acid GB/T 4423-1992 Wrought copper and copper alloys—Drawn rods and bars GB/T 4423-2007 Copper and copper-alloy cold-drawn rod and bar GB/T 4423-2020 Copper and copper alloy cold-drawn rod and bar 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 7307-2001 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads GB/T 10125-1997 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2012 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2021 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 12220-1989 General purpose industrial valves—Marking GB/T 12220-2015 Industrial valves—Marking GB/T 12225-1989 General purpose industrial valves—Specification of copper alloy castings GB/T 12225-2005 General purpose industrial valves—Specification of copper alloy castings GB/T 12225-2018 General purpose industrial valves—Specification of copper alloy castings GB/T 12230-1989 General purpose industrial valves—Specification of austenitic steel castings GB/T 12230-2005 General purpose industrial valves—Specification of stainless steel castings GB/T 12230-2023 General purpose industrial valves—Specification of stainless steel castings GB/T 1239.2-2009 Cold coiled helical springs technical specifications—Part 2:Compressions spring GB/T 13927-1992 Pressure testing for general purpose valves GB/T 13927-2008 Industrial valves—Pressure testing GB/T 13927-2022 Industrial valves—Pressure testing GB/T 16693-1996 Quick hose' s connection GB/T 17219-1998 Standard for safety evaluation of equipment and protective materials in drinking water system GB/T 17306-1998 Standards for packaging—Consumer requirements GB/T 17306-2008 Packaging—Addressing consumer needs HG/T 3097-2006 Rubber sealing parts - Sealing ring for pipe interface of 110℃ hot water supply pipeline - Material specification JB/T 7927-2014 The appearance quality requirements for valve cast steel components JB/T 7927-1999 The appearance quality requirements for valve cast steel parts JB/T 308-2004 Valves model designation method JB/T 5296-1991 General Valves - Test Methods for Flow Coefficients and Flow Resistance Coefficients YB/T 11-1983 Stainless steel wire for springs GB/T 196-2025 General purpose metric screw threads—Basic dimensions GB/T 17219-2025 Hygienic safety evaluation of distribution equipment,protective materials and treatment materials in drinking water system GB/T 191-2025 Graphical symbols marking for handling and storage of packages

EN 14455-2005