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GB/T 44754-2024: RE-base hydrogen storage alloy used in solid-state hydrogen storage
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RE-base hydrogen storage alloy used in solid-state hydrogen storage
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Standard similar to GB/T 44754-2024 GB/T 45651 | GB/T 40854 | GB 39176 | GB/T 44763 | GB/T 44762 | Basic data | Standard ID | GB/T 44754-2024 (GB/T44754-2024) | | Description (Translated English) | RE-base hydrogen storage alloy used in solid-state hydrogen storage | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H65 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 12,189 | | Date of Issue | 2024-10-26 | | Date of Implementation | 2025-05-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 44754-2024: RE-base hydrogen storage alloy used in solid-state hydrogen storage---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/GBT44754-2024
RE-base hydrogen storage alloy used in solid-state hydrogen storage
Rare earth hydrogen storage alloys for solid-state hydrogen storage
ICS 77.120.99
CCS H 65
National Standard of the People's Republic of China
Released on October 26, 2024
Implementation on May 1, 2025
State Administration for Market Regulation
The National Standardization Administration issued
Preface
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting is required.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed and coordinated by the National Rare Earth Standardization Technical Committee (SAC/TC 229).
This document was drafted by. Antai Environmental Engineering Technology Co., Ltd., Inner Mongolia Xi'ao Ke Hydrogen Storage Alloy Co., Ltd., Baotou Rare Earth Research Institute
Institute of Technology, Ordos Institute of Technology, YUYAN Engineering Technology Research Institute Co., Ltd., Antai Technology Co., Ltd., Ruike Rare Earth Metallurgy and
National Engineering Research Center for Functional Materials Co., Ltd., Zhongxi (Weishan) Rare Earth New Materials Co., Ltd., Jiangxi Rare Earth Research Institute of the Chinese Academy of Sciences
Institute, Guorui Science and Technology Rare Earth Functional Materials (Ganzhou) Co., Ltd.
The main drafters of this document are. Ji Liqiang, Wang Li, Wang Yongguang, Zhu Xiaomei, Wang Shumao, Duan Yanan, Xu Jin, Li Jun, Chen Qingjun, Ge Liang,
Wu Yuanfang, He Wencheng, Xu Yongyan, and Zeng Huifeng.
Rare earth hydrogen storage alloys for solid-state hydrogen storage
1 Scope
This document specifies the classification, technical requirements, test methods, inspection rules and marking, packaging,
Transport, storage and quality certificates.
This document applies to rare earth hydrogen storage alloys used for solid-state hydrogen storage produced by vacuum induction melting metallurgical process.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the latest version (including all amendments) applies to this document.
In this document.
GB/T 1479.1 Metal powders - Determination of bulk density - Part 1.Funnel method
GB/T 1480 Metal powders - Determination of particle size by dry sieving
GB/T 8170 Rules for rounding off values and expression and determination of limit values
GB/T 12690.19 Chemical analysis of non-rare earth impurities in rare earth metals and their oxides - Part 19.Determination of arsenic and mercury
GB/T 29918-2023 Test method for pressure-composition isotherm (PCI) of rare earth hydrogen storage alloys
GB 39176 Packaging, labeling, transportation and storage of rare earth products
XB/T 622.1 Chemical analysis methods for rare earth hydrogen storage alloys - Part 1.Determination of total rare earth content - Oxalate gravimetric method
XB/T 622.2 Chemical analysis methods for rare earth hydrogen storage alloys Part 2.Nickel, lanthanum, cerium, praseodymium, neodymium, samarium, yttrium, cobalt, manganese,
Determination of the amount of aluminum, iron, magnesium, zinc and copper
XB/T 622.5 Chemical analysis methods for rare earth hydrogen storage alloys Part 5.Determination of carbon content High frequency combustion infrared absorption method
XB/T 622.6 Chemical analysis methods for rare earth hydrogen storage alloys - Part 6.Determination of oxygen content - Pulse heating infrared absorption method
XB/T 622.7 Chemical analysis methods for rare earth hydrogen storage alloys - Part 7.Determination of lead and cadmium content
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
solid hydrogen storage
Hydrogen is stored in solid materials by utilizing the physical adsorption and chemical adsorption of hydrogen by the materials.
3.2
maximum hydrogen storage capacity
The maximum mass fraction of hydrogen absorbed by a unit mass of hydrogen storage alloy under a certain temperature and pressure.
Note. It is also expressed as the maximum amount of hydrogen atoms per 1 mol of hydrogen storage alloy (mol).
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