Standard No.:	TSG 23-2021/XG1-2024
English Name:	Regulation on Safety Technology for Gas Cylinder,includes Amendment 1
Chinese Name:	《气瓶安全技术规程》行业标准第1号修改单
Professional Classification:	TSG    Special Equipment Safety Specification
Issued by:	SAMR
Issued on:	2024-09-26
Implemented on:	2025-1-1
Status:	to be valid
Superseding:	TSG 23-2021 Regulation on Safety Technology for Gas Cylinder
Language:	English
File Format:	PDF
Word Count:	51000 words
Price(USD):	1400.0
Delivery:	via email in 1~2 business day

TSG 23-2021/XG1-2024 Regulation on safety technology for gas cylinder 1 General provisions 1.1 Purpose The Regulation is formulated according to Special equipment safety Law of the People's Republic of China and Regulations on safety supervision of special equipment with a view to standardize the safe operation of gas cylinder, guarantee people's life and property safety, and promote the socioeconomic development. 1.2 Applicable scope (1) The Regulation is applicable to seamless gas cylinders, welded gas cylinders, cryogenic insulated cylinders, fiber-wrapped gas cylinders, internal-packed gas cylinder and their bundling devices (Note 1-3), for containing compressed gas, high/low pressure liquefied gas, refrigerated liquefied gas, dissolved gas, adsorbed gas, gas mixture (Note 1-2) and liquid with normal boiling point equal to or lower than 60°C, used at ambient temperature of -40°C ~ 60°C (Note 1-1), with nominal volume of 0.4L ~ 3000L, nominal working pressure of 0.2MPa ~ 70MPa (gauge pressure, similarly hereinafter) and the product of pressure and volume greater than or equal to 1.0MPa·L. (2) Large capacity gas cylinders for tube trailers and tube bundle containers and gas cylinders for fire extinguisher shall meet the requirements of general provisions, materials, design and manufacturing in the Regulation. Tube trailers and tube bundle containers shall also meet the requirements of Supervision regulation on safety technology for transportable pressure vessel; relevant provisions of the Regulation may apply to the large capacity gas cylinders with a capacity more than 3,000L and less than or equal to 5,000L. The gas cylinders referred to in this regulation include the cylinder shell and cylinder attachment. See Annex A for the classification, varieties and codes of the major gas cylinders covered in the Regulation. Note 1-1: Ambient temperature of gas cylinders for vehicles (Note 1-4) and fire extinguishers shall be in accordance with the relevant standards. Note 1-2: See Annex B for the classification of gases filled in cylinder such as compressed gas, high (low) pressure liquefied gas, refrigerated liquefied gas, dissolved gas, adsorbed gas and gas mixture, and the physical parameters of common gases. Note 1-3: Gas cylinder bundling device refers to a cylinder group packaging device that bundles several gas cylinders together for road transportation or temporarily fixes them for use, which generally consists of gas cylinders, pipelines and frames. Note 1-4: Gas cylinder for vehicles refers to the gas cylinder fixed on a motor vehicle and containing motor vehicle fuels (such as natural gas, hydrogen, liquefied petroleum gas, liquefied dimethyl ether, etc.). 1.3 Inapplicable scope The Regulation is not applicable to gas cylinders for fire extinguishers that withstand transient pressure only in fire extinguishing, portable dry powder type gas cylinders, water-based gas cylinders for fire extinguishers and brazed structure gas cylinders, and gas cylinders for military equipment, nuclear facilities, aerospace vehicles, railway locomotives, offshore facilities, ships, pits of mines, and dedicated equipment for civil airports. 1.4 Relationship with standards and management systems (1) The Regulation specifies the basic safety requirements of design, manufacture, type test, supervision and inspection, filling and use, regular inspection, etc. of gas cylinders, and the relevant standards of gas cylinders and safety management requirements of relevant organizations for gas cylinders, etc., shall not be lower than the requirements of the Regulation; (2) Generally, gas cylinder products shall be designed and manufactured according to national standards or professional standards. If relevant national standards or professional standards have not been formulated, social organization standards or enterprise standards shall be formulated. The enterprise standard developer shall also provide a comparison table that meets the basic safety requirements of the Regulation in the form shown in Annex C. 1.5 Handling of special cases If a relevant organization adopts new materials, new technologies and new processes, which are inconsistent with the Regulation or which are not required by the Regulation and may have a significant impact on safety performance, it shall be reported to the State Administration for Market Regulation and the Administration shall organize technical review and approval according to the review and approval procedures of new materials, new technologies and new processes. 1.6 Harmonized standards and reference standards (Note 1-5) The harmonized standards for the Regulation refer to the national standards that meet the basic safety requirements of the Regulation. The reference standards for the Regulation refer to the basic standards such as material standards, medium standards, method standards, parts standards, filling standards, inspection standards, etc. Harmonized standards are as follows: (1) GB/T 5099.1 Seamless steel gas cylinders — Part 1: Quenched and tempered steel cylinders with tensile strength less than 1 100 MPa; (2) GB/T 5099.3 Seamless steel gas cylinders — Part 3: Normalized cylinders; (3) GB/T 5099.4 Seamless steel gas cylinders — Part 4: Seamless stainless steel gas cylinders; (4) GB/T 5100 Welded steel gas cylinders; (5) GB/T 5842 Liquefied petroleum gas cylinders; (6) GB/T 11638 Dissolved acetylene cylinders; (7) GB/T 11640 Seamless aluminium alloy gas cylinders; (8) GB/T 17258 Steel cylinders for the on-board storage of compressed natural gas as a fuel for automotive vehicles; (9) GB/T 17259 Steel cylinders for the liquefied petroleum gas for vehicles; (10) GB/T 17268 Non-refillable steel welded cylinders for industrial use; (11) GB/T 24159 Welded insulated cylinders; (12) GB/T 24160 Hoop-wrapped composite cylinders with steel liner for the on-board storage of compressed natural gas as a fuel for automotive vehicles; (13) GB/T 28053 Composite cylinders for breathing apparatus; (14) GB/T 28054 The bundles of seamless steel gas cylinders; (15) GB/T 32566 Welded stainless steel gas cylinders; (16) GB/T 33145 Large capacity seamless steel gas cylinders; (17) GB/T 33147 Liquefied dimethyl ether cylinders; (18) GB/T 34510 Liquefied natural gas cylinders for vehicles; (19) GB/T 35544 Fully-wrapped carbon fiber reinforced cylinders with an aluminum liner for the on-board storage of compressed hydrogen as a fuel for land vehicles Note 1-5: Among the harmonized standards and reference standards listed in the Regulation, for dated references, subsequent amendments (excluding any corrections) to, or revisions of any of these publications do not apply. For undated references, the latest edition of the normative document applies. 1.7 Dedicated gas cylinders Gas cylinders for pure gas shall be dedicated, and only gases compliant to the design documents and manufacture marks are allowed to be filled (except the purging gas used in the filling process), and the manufacture marks and application of gas cylinders shall not be changed, nor shall other gases be mixed. Gas cylinders for gas mixture shall be filled with gas mixture with the same characteristics (Note 1-6) with those specified by the gas cylinder mark. Note 1-6: Gas characteristic refers to toxicity (T), oxidability (O), flammability (F) and corrosivity (C) determined according to GB/T 16163 Classification of gases filled in cylinder and GB/T 34710 Classification of the mixture gas. 1.8 Gas cylinder marks Gas cylinder marks include manufacture mark, periodic inspection mark and others. (1) Generally, manufacture marks include steel impression mark (including mark on nameplate), label mark (pasted on shell, the same below), typographical mark (printed on shell, the same below), electronic reading mark (including radio frequency label and electronic carrier such as two-dimensional code which uses image recognition technology to scan and read data electronically, the same below) and gas cylinder colored mark; (2) Periodic inspection marks include steel impression mark, electronic reading mark, label mark and coating mark, etc.; (3) In addition to the cylinder marking methods in Items (1) and (2), as for gas cylinder for taxi fuel, the gas cylinder manufacturing unit, the installation unit or the inspection agency shall arrange a permanent "TAXI" mark (steel impression mark for steel gas cylinder; resin coated label for fiber-wrapped gas cylinder) on an obvious position of the gas cylinder. 1.8.1 Manufacture marks of gas cylinder 1.8.1.1 Steel impression mark, label mark or typographical mark of gas cylinder (1) Manufacture mark of gas cylinder is the basis to identify gas cylinder, and the content of the mark shall meet the requirements of Annex D hereto and relevant standards; the contents of manufacture mark of small capacity gas cylinders may refer to the requirements of Annex D hereto; (2) The manufacturing unit shall make a manufacture mark on each gas cylinder, such as steel impression mark, label mark or typographical mark; (3) The manufacturing unit shall imprint the concave contained medium, year of manufacture and property right unit mark on the head of steel fuel gas cylinder (Note 1-7), and imprint the words "Prohibited in crowded rooms" on the shield; composite fuel gas cylinders shall be die-cast on the jacket to contain the medium, the year of manufacture, the sign of the property right unit, and the words "Prohibited in crowded rooms". Note 1-7: Fuel gas cylinder refers to a cylinder containing civil fuel gases such as liquefied petroleum gas and liquefied dimethyl ether, which are classified into steel fuel gas cylinders and composite fuel gas cylinders. 1.8.1.2 Electronic reading mark The manufacturing unit of hydrogen cylinders, fiber-wrapped gas cylinders, fuel gas cylinders and gas cylinders for vehicles shall be provided with traceable permanent electronic reading marks on the ex-factory gas cylinders. Other gas cylinder manufacturing units are encouraged to use traceable permanent electronic reading marks on gas cylinders. The electronic reading marks set on steel fuel gas cylinders shall be engraved or welded directly on the shield, and make sure that they cannot be replaced and can be read effectively within the service life of the cylinders. The electronic reading marks shall be able to link to the gas cylinder product publicity platform established by the manufacturing unit through mobile phone scanning, and directly obtain the product information data of each gas cylinder. 1.8.1.3 Colored mark, typeface and colored ring on external surface of gas cylinder Colored mark, typeface and colored ring on gas external surface of gas cylinders shall meet the requirements of GB 7144 Colored cylinder mark for gases; if there is special requirement on colored mark, typeface or colored ring, they shall meet the requirements of corresponding product standard. As for colored mark, typeface and colored ring of gas cylinders that are not listed in any national standards, relevant social organization standards shall be prepared. The name or abbreviation of the gas cylinder filling unit responsible for the use registration shall be marked on the obvious position of gas cylinders.

Content Foreword i 1 General provisions 2 Materials 3 Design 4 Manufacturing 5 Type test 6 Supervision and inspection 7 Gas cylinder attachments 8 Filling and use 9 Periodic inspection 10 Supplementary provisions Annex A Classification, variety and code of gas cylinders Annex B Classification of cylinder gas and physical parameters of common gas Annex C Comparison table between gas cylinder enterprise standard and basic safety requirements of the Regulation Annex D Gas cylinder marks Annex E Imported and exported gas cylinder Annex F Application for identification of gas cylinder design documents Annex G Gas cylinder design document appraisal report Annex H Gas cylinder product data sheet Annex J Application for type test of special equipment (Gas cylinder) Annex K Sampling and management requirements for type test samples of gas cylinders and gas cylinder valves Annex L Type test items of gas cylinders and gas cylinder valves Annex M Type test report of special equipment (gas cylinder and gas cylinder valve) Annex N Type test certificate for special equipment (gas cylinder and gas cylinder valve) Annex n Number method and description of type test certificate for gas cylinder (cylinder valve) Annex P Contact list for special equipment supervision inspection Annex Q Notice for supervision inspection opinions on special equipment Annex R Certificate for (manufacture) supervision and inspection of special equipment (Gas cylinder) Annex S Safety performance supervision and inspection certificate of imported special equipment (Gas cylinder) Annex T Gas cylinder protective cover style Annex U Cylinder periodic inspection item Annex V Gas cylinder periodic inspection Attached table va List of acceptable gas cylinders for regular inspection Attached table vb List of scrapped cylinders Previous development (revision) of relevant rules and regulations