1 Scope
This standard specifies terms and definitions, basic types and parameters, technical requirements, inspection and test methods, inspection rules and marking, packing and storage and transportation of compressed natural gas cylinder valve for vehicle.
This standard is applicable to compressed natural gas cylinder valve for vehicle in -40℃~+85℃ operating temperature and 20MPa nominal working pressure.
2 Normative References
The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these documents are applicable. For undated references, its latest edition is applicable to this standard.
GB/T 197 General Purpose Metric Screw Threads-Tolerances
GB/T 228 Metallic Materials-Tensile Testing at Ambient Temperature (GB/T 228-2002, eqv ISO 6892:1998)
GB/T 1173 Casting Aluminium Alloys
GB/T 3512 Rubber Vulcanized or Thermoplastic-Accelerated Ageing and Heat Resistance Tests-Air-oven Method (GB/T 3512-2001, eqv ISO 188:1998)
GB/T 3934 Specification of Gauges for General Purpose Screw Threads (GB/T 3934-2003, ISO 1502: 1996, MOD)
GB/T 4423 Copper and Copper-alloy Cold-drawn Rod and Bar
GB/T 5121.1 Chemical Analysis Methods of Copper and Copper Alloy Determination of Copper Content
GB/T 5121.3 Chemical Analysis Methods of Copper and Copper alloy Determination of Lead Content
GB/T 5121.9 Chemical Analysis Methods of Copper and Copper Alloy Determination of Iron Content
GB/T 5231 Wrought Copper and Copper Alloys Chemical Composition Limits and Forms of Wrought Products
GB 8335 Special Thread for Gas Cylinders
GB/T 8336 Special Threads for Gas Cylinders
GB 8337 Fusible Plug for Gas Cylinders
GB/T 10567.2 Wrought Copper and Copper Alloys-Detection of Residual Stress-Ammonia Test
GB/T 12716 Pipe Threads with the Thread Angle of 60 Degrees Where Pressure-tight Joints are Made on the Threads
GB/T 13005 Terminology of Gas Cylinders
GB 15383 Outlet Connections and Sizes for Cylinder Valves
GB 16918 Bursting Discs Specification for Gas Cylinder
Contents
1 Scope
2 Normative References
3 Terms and Definitions
4 Basic Type and Parameter
5 Technical Requirements
6 Inspection and Test Methods
7 Inspection Rules
8 Marking, Packing and Storage and Transportation
