GB/T 3634.2-2011 PDF EnglishUS$150.00 · In stock · Download in 9 seconds
GB/T 3634.2-2011: Hydrogen - Part 2: Pure hydrogen, high pure hydrogen and ultrapure hydrogen Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 3634.2-2011: Hydrogen - Part 2: Pure hydrogen, high pure hydrogen and ultrapure 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/GBT3634.2-2011GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 71.100.20 G 86 Replacing GB/T 7445-1995 Hydrogen -- Part 2.Pure hydrogen, high pure hydrogen and ultrapure hydrogen Issued on. DECEMBER 30, 2011 Implemented on. OCTOBER 1, 2012 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Requirements... 5 4 Inspection rules... 6 5 Test methods... 7 6 Packaging, marking, storage and transportation... 8 7 Safety requirements... 9 Annex A (Normative) Determination of oxygen + argon, nitrogen, carbon monoxide, carbon dioxide, and methane in hydrogen using the gas chromatography with helium ionization detector... 10 Annex B (Informative) Example of temperature-changing concentration injector ... 13ForewordGB/T 3634 Hydrogen is divided into two parts. Part 1.Industrial hydrogen; Part 2.Pure hydrogen, high pure hydrogen and ultrapure hydrogen. This is Part 2 of GB/T 3634. This Part was drafted in accordance with the rules given in GB/T 1.1-2009. This Part supersedes GB/T 7445-1995 Pure hydrogen, high purity hydrogen and ultra pure hydrogen. Compared with GB/T 7445-1995, in addition to editorial changes, the main technical changes are as follows. — MODIFY the scope of application (SEE Chapter 1 of this edition, and Chapter 1 of the 1995 edition); — MODIFY the normative references (SEE Chapter 2 of this edition, and Chapter 2 of the 1995 edition); — MODIFY the argon component requirements (SEE Chapter 3 of this edition, and Chapter 3 of the 1995 edition); — SUPPLEMENT the inspection rules for container assembly and hydrogen tanker loading products (SEE 4.2, 4.3 and 4.5 of this edition); MODIFY the inspection rules for high purity hydrogen (SEE 4.2 and 4.3 of this edition, and 5.4 of the 1995 edition); — In the test methods, SUPPLEMENT the electrochemical method to determine the oxygen content; SUPPLEMENT the gas chromatography with helium ionization detector, and INCORPORATE the supplement in Annex A of this edition; INTRODUCE a thermal conductivity gas chromatograph to determine the contents of carbon monoxide, carbon dioxide, and methane in hydrogen (SEE 5.2 of this edition, Annex A); — MODIFY the temperature-changing concentration gas circuit for sample injection; INCORPORATE the modification in Annex A (SEE Annex B of this edition, and Figure 1 of the 1995 edition). This Part was proposed by the China Petroleum and Chemical Industry Federation. This Part shall be under the jurisdiction of National Technical Committee for Standardization of Gas (SAC/TC 206). Drafting organizations of this Part. Southwest Research & Design Institute of Chemical Industry, Jiangsu Tianhong Chemical Co., Ltd, Nanjing Special Gas Factory Co., Ltd, Shanghai Huaai Chromatography Analysis Technology Co., Ltd, Guangming Chemical Research and Design Institute. Main drafters of this Part. Wang Shaonan, Cai Tijie, Shen Tao, Shen Weiming, Chen Jun, Fang Hua, Zhang Jun. The previous released editions of the standards replaced by this Part are as follows. GB 7445-1987, GB 7446-1987, and GB/T 7445-1995. Hydrogen -- Part 2.Pure hydrogen, high pure hydrogen and ultrapure hydrogen1 ScopeThis Part specifies the technical requirements, test methods, packaging, marking, storage and transportation, and safety requirements for pure hydrogen, high pure hydrogen and ultrapure hydrogen. This Part is applicable to hydrogen produced by means of adsorption and diffusion, loaded in bottles and containers, and transmitted by pipeline. It is mainly used in the fields of electronics industry, petrochemical industry, metal smelting, and scientific research. Molecular formula. H2. Relative molecular mass. 2.015 88 (according to international relative atomic mass in 2007).2 Normative referencesThe following documents are essential to the application of this document. For dated references, only the editions with the dates indicated are applicable to this document. For undated references, only the latest editions (including all the amendments) are applicable to this document. GB/T 3634.1-2006 Hydrogen -- Part 1.Industrial hydrogen GB/T 5832.3 Determination of moisture in gases -- Part 3.The method of cavity ring-down spectroscopy3 Requirements3.1 The technical requirements for pure hydrogen, high pure hydrogen and ultrapure hydrogen shall meet the requirements of Table 1.4 Inspection rules4.1 Continuous and stable production of bottled (container loaded) pure hydrogen, and bottled high pure hydrogen is produced in one operation class or grouped in one-time filling product batch of the manufacturing plant. Users are grouped in the same vehicle load or same batch of shipments. The number of bottles (or number of containers) per batch shall not exceed 300. 4.3 Container loaded high pure hydrogen products shall be inspected and accepted container by container. When any of the indicators in the inspection results does not meet the technical requirements of this Part, the product is rejected. 4.4 Ultrapure hydrogen products shall be inspected and accepted one by one. When any of the indicators in the inspection results does not meet the technical requirements of this Part, the product is rejected. 4.5 The hydrogen products loaded in large-volume seamless steel cylinders shall be inspected and accepted car by car. When any of the indicators in the inspection results does not meet the technical requirements of this Part, the products loaded in this vehicle are rejected.5 Test methods5.1 Hydrogen purity The hydrogen purity is calculated according to the Formula (1). 5.2 Determination of contents of oxygen + argon, nitrogen, carbon monoxide, carbon dioxide, and methane in hydrogen 5.2.1 USE gas chromatography with helium ionization detector to determine the contents of oxygen + argon, nitrogen, carbon monoxide, carbon dioxide, and methane in hydrogen. SEE Annex A. 5.2.4 DETERMINE the content of oxygen in hydrogen according to the provisions of GB/T 6285.Other equivalent methods are allowed to determine the content of oxygen in hydrogen. When there is any objection to the determination results, the method specified in GB/T 6285 is used as the arbitration method. 5.3 Determination of moisture content PERFORM according to the provisions of GB/T 5832.3.Other equivalent methods are allowed to determine the moisture content in hydrogen.6 Packaging, marking, storage and transportationThe requirements for packaging, marking, storage and transportation of hydrogen shall comply with the provisions of Chapter 5 in GB/T 3634.1-2006.7 Safety requirementsThe safety requirements for hydrogen shall comply with the provisions of Chapter 6 in GB/T 3634.1-2006.Annex A(Normative) Determination of oxygen + argon, nitrogen, carbon monoxide, carbon dioxide, and methane in hydrogen using the gas chromatography with helium ionization detector A.1 Method USE gas chromatography with helium ionization detector to determine the contents of oxygen + argon, nitrogen, carbon monoxide, carbon dioxide, and methane in hydrogen. A.2 Instrument The detection limit of the instrument required to be used for the components to be tested shall be lower than 1/4 of the corresponding technical indicators listed in Table 1 of this Part. It is recommended to use a helium ionization gas chromatograph equipped with a pneumatic cutting device and a column switching device. When analyzing ultrapure hydrogen, a deoxygenation device shall be provided. Figure A.1 shows the gas flow diagram of the referenced helium ionization gas chromatograph equipped with a pneumatic cutting device, deoxy column, and column switching device. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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