GB/T 3634.1-2025 English PDF
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GB/T 3634.1: Historical versions
| Standard ID | USD | BUY PDF | Delivery | Standard Title (Description) | Status |
| GB/T 3634.1-2025 | 320 | Add to Cart | Auto, 9 seconds. | Hydrogen - Part 1: Industrial hydrogen | Valid |
| GB/T 3634.1-2006 | 115 | Add to Cart | Auto, 9 seconds. | Hydrogen - Part 1: Industrial hydrogen | Valid |
| GB/T 3634-1995 | 239 | Add to Cart | 2 days | Hydrogen | Obsolete |
| GB 3634-1983 | 279 | Add to Cart | 3 days | Commercial hydrogen | Obsolete |
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GB/T 3634.1-2025: Hydrogen - Part 1: Industrial hydrogen
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT3634.1-2025GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 71.100.20 CCS G 86 Replacing GB/T 3634.1-2006 Hydrogen – Part 1.Industrial Hydrogen Issued on: OCTOBER 31, 2025 Implemented on: MAY 1, 2026 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3 Introduction... 6 1 Scope... 7 2 Normative References... 7 3 Terms and Definitions... 8 4 Technical Requirements... 8 5 Sampling... 9 6 Test Methods... 9 7 Inspection Rules... 12 8 Marking, Accompanying Documents, Packaging, Filling, Transportation and Storage ... 14 9 Safety Information... 15 Appendix A (Informative) Typical Chromatogram... 16 Appendix B (Informative) Safety Information of Hydrogen... 17 Bibliography... 19 Hydrogen – Part 1.Industrial Hydrogen1 Scope
This Document specifies the technical requirements, sampling, inspection rules, marking, accompanying documentation, packaging, filling, transportation, and storage requirements for industrial hydrogen. It describes methods for determining the impurity content in industrial hydrogen and provides safety information for hydrogen. This Document applies to industrial hydrogen produced from fossil fuels, water electrolysis, biomass, other hydrogen-containing substances, and industrial hydrogen obtained through the recovery and purification of industrial by-product hydrogen.2 Normative References
The provisions in following documents become the essential provisions of this Document through reference in this Document. For the dated documents, only the versions with the dates indicated are applicable to this Document; for the undated documents, only the latest version (including all the amendments) is applicable to this Document. GB 190 Packing symbol of dangerous goods GB/T 191 Packaging - Pictorial Marking for Handling of Goods GB/T 3634.2 Hydrogen - Part 2.Pure hydrogen, high purity hydrogen and ultra purity hydrogen GB/T 5099 (all parts) Seamless steel gas cylinders GB/T 5832.2 Gas analysis - Determination of water - Part 2.Dew point method GB/T 7144 Colored cylinder mark for gases GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 11640 Seamless aluminum alloy gas cylinders GB/T 14194 Rules for filling of compressed gas cylinders GB 15258 General rules for preparation of precautionary label for chemicals GB/T 15382 General specifications of gas cylinder valves GB/T 16483 Safety data sheet for chemical products - Content and order of sections GB/T 16804 Precautionary labels for gas cylinders GB/T 27550 Safety specification for filling station of gas cylinders GB/T 28054 Bundles of seamless steel gas cylinders GB/T 30685 Technical requirements for vertical road transportation of gas cylinder GB/T 33145 Large capacity seamless steel gas cylinders GB/T 34525 Safety rules for handling, loading and unloading, storing and using of cylinder GB/T 43306 Gas analysis - Sampling guidelines JT/T 617 (all parts) Regulations concerning road transportation of dangerous goods NB/T 10354 Tube trailer NB/T 10355 Tube skid container TSG 07 Regulation for Production and Filling Licensing of Special Equipment TSG 23 Regulation on Safety Technology for Gas Cylinder TSG R0005 Supervision Regulation on Safety Technology for Transportable Pressure Vessel3 Terms and Definitions
For the purposes of this Document, there are no terms and definitions apply.4 Technical Requirements
4.1 The technical requirements for industrial hydrogen shall comply with the provisions of Table 1. 4.2 The chlorine and alkali content and test methods in industrial hydrogen produced by salt electrolysis shall be negotiated by the supplier and the purchaser.5 Sampling
The sampling of industrial hydrogen shall comply with the provisions of GB/T 43306.6 Test Methods
Warning. During the determination, there shall be measures for treating hydrogen tail gas to prevent safety risks associated with hydrogen. 6.1 Calculation of industrial hydrogen purity The chlorine, alkali, and moisture content in industrial hydrogen is not included in the purity calculation. The purity of industrial hydrogen is calculated according to Formula (1). Where. x – purity of industrial hydrogen (mole fraction); x1 – nitrogen content (mole fraction); x2 – (oxygen + argon) content (mole fraction). 6.2 Determination of nitrogen, oxygen + argon content 6.2.1 Thermal conductivity gas chromatography 6.2.1.1 Overview of method A gas chromatograph equipped with a thermal conductivity detector (TCD) was used, with high-purity hydrogen as the carrier gas. The TCD operates based on the thermal conductivity effect, i.e., different substances have different thermal conductivities. Industrial hydrogen was 7 - Sample gas inlet; 8 - Tail gas outlet; 9 - Thermal conductivity detector; 10 - Chromatographic column; 11 - Balance gas flow controller. Figure 1 -- Schematic diagram of thermal conductivity gas chromatography flow chart 6.2.1.3 Reagents and materials 6.2.1.3.1 Carrier gas High-purity hydrogen shall meet the requirements of GB/T 3634.2. 6.2.1.3.2 Chromatographic column A stainless-steel tube approximately 6000 mm long and 2 mm in inner diameter, packed with modified calcium molecular sieve (referred to as "5A molecular sieve") with a particle size of 0.25 mm to 0.40 mm; or other equivalent chromatographic columns. 6.2.1.3.3 Gas standard sample The content of the component shall be as close as possible to that of the content of the tested component. Hydrogen shall be used as the equilibrium gas. 6.2.1.4 Measurement conditions 6.2.1.4.1 Carrier gas flow rate It is recommended to be 40 mL/min, or refer to the instrument manual. 6.2.1.4.2 Bridge current It is recommended to be 150 mA, or refer to the corresponding instrument manual. 6.2.1.4.3 Other conditions Refer to the instrument manual. 6.2.1.5 Measurement procedure After the instrument has stabilized, perform the measurement according to the instrument manual. Measure the gas standard sample and sample gas in parallel for at least three times, until the difference between two consecutive measurements is no greater than 5% of the arithmetic mean of these three measurements. Take the arithmetic mean of these three measurements as the final measured value. A typical chromatogram is shown in Appendix A. 6.2.1.6 Processing of the results The nitrogen and (oxygen + argon) content (xs,i) in the sample gas is calculated according to Formula (2). Where. xs,i - the content (mole fraction) of target component i in the sample gas; ̅s,i - the arithmetic mean of the response values of target component i in the sample gas; ̅ r,i - the arithmetic mean of the response values of target component i in the gas standard sample/standard substance; xr,i - the content (mole fraction) of target component i in the gas standard sample/standard substance. 6.2.2 Equivalent methods Other equivalent methods may be used to determine the nitrogen and oxygen + argon content in industrial hydrogen. In case of disagreement over the determination results, the method specified in 6.2.1 shall be used as the arbitration method. 6.3 Determination of moisture content The determination of moisture content in industrial hydrogen with a purity of 99.95% shall be performed in accordance with the provisions of GB/T 5832.2.Other equivalent methods may also be used to determine the moisture content in industrial hydrogen. In case of disagreement over the determination results, the method specified in GB/T5832.2 shall be used as the arbitration method.7 Inspection Rules
7.1 Batching A batch consists of industrial hydrogen products packaged in cylinders produced continuously and stably from the same production line. For industrial hydrogen packaged in cylinder bundles, long-tube trailers, or large-capacity seamless steel cylinders, each package of industrial hydrogen constitutes a batch. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
