Standard No.:	GB 19158-2003
English Name:	Steel cylinders for the storage of compressed natural gas
Chinese Name:	站用压缩天然气钢瓶
Chinese Classification:	J76    Gas separation and liquefaction equipment
Professional Classification:	GB    National Standard
ICS Classification:	23.020.30 23.020.30    Gas pressure vessels, gas cylinders 23.020.30
Issued by:	AQSIQ
Issued on:	2003-5-23
Implemented on:	2003-11-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	150.0
Delivery:	via email in 1 business day

This standard specifies the types, parameters, technical requirements, test methods, inspection rules, marking, coating, packing, transport and storage of special steel cylinders for compressed natural gas filling station (hereinafter referred to as steel cylinders). This standard is applicable to steel cylinders whose nominal working pressure in design and manufacturing is 25 MPa (the pressure in this standard refers to gauge pressure), nominal volume 50~200 L, and design temperature ≤60℃. The steel cylinders manufactured according to this standard are only allowed to be filled with natural gas which complies with "Compressed Natural Gas as Vehicle Fuel" (GB 18047-2000).

1 Scope 2 Normative References 3 Terms and Symbols 4 Types and Parameters 5 Technical Requirements 6 Test Methods 7 Inspection Rules 8 Marking, Coating, Packing, Transport and Storage 9 Installation 10 Product Certificate and Batch Inspection Certificate Appendix A (Normative) Batch Inspection Certificate of Steel Cylinders for the Storage of Compressed Natural Gas

*GB/T 222-1984 Method of sampling steel for determination of chemical composition and permissible variations for product analysis
*GB/T 223.1-1981 Determination of carbon content in iron, steel and alloy
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*GB/T 223.3-1988
*GB/T 223.4-1988
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*GB/T 223.6-1994 Methods for chemical analysis of iron,steel and alloy The neutralization titrimetric method for the determination of boron content
*GB/T 224-1987
*GB/T 226-1991 Etch test for macrostructure and defect of steels
*GB/T 228-2002 Metallic Materials – Tensile Testing at Ambient Temperature
*GB/T 229-1994 Charpy Notch Impact Test
*GB/T 230-1991 Metallic materials－Rockwell hardness test
*GB/T 231.1-2002 Metallic materials--Brinell hardness test--Part 1:Test method
*GB/T 231.2-2002 Metallic Brinell hardness test - Part 2: Verification and calibration of hardness testers
*GB/T 231.3-2002 Metalic Brinell hardness test - Part 3: Calibration of hardness reference blocks
*GB/T 232-1999 Metallic Materials - Bend Test
*GB/T 1172-1999 Conversion of hardness and strength for ferrous metal
*GB/T 1979-2001 STANDARD diagrams for macrostructure and defect of structural steels
*GB/T 3077-1999 Alloy Structure Steels
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*GB 7144-1999 Coloured cylinder mark for gases
*GB 8335-1998 Special threads for gas cylinders
*GB/T 8336-1998 Special thread gauges for gas cylinders
*GB/T 9251-1997 Method for hydraulic test of gas cylinders
*GB/T 9252-2001 Method for cycling test of gas cylinders
*GB/T 12137-2002 Method for leakage test of gas cylinders
*GB/T 12606-1999 Steel Tubes - The Testing Method of Magnetic Flux Leakage
*GB/T 13298-1991 Metal - Inspection Method of Microstructure
*GB/T 13299-1991 Steel - Determination of Microstructure
*GB/T 13440-1992 Method for flattening test of seamless gas cylinders
*GB/T 5385-1994 Method of acceleration test for motorcycles and mopeds
*GB 18047-2000 Compressed natural gas as vehicle fuel
*GB 18248-2000 Seamless steel tubes for gas cylinder
*JB 4730-1994 Nondestructive Testing of Pressure Vessels
*YB/T 5148-1993 Metal-methods for Estimating the Average Grain Size