GB/T 44754-2024 RE-base hydrogen storage alloy used in solid-state hydrogen storage

GB/T 1479.1-2011 Metallic powders—Determination of apparent density—Part 1:Funnal method GB/T 1480-1995 Determination of particle size for metallic powders—Dry sieving GB/T 1480-2012 Metallic powders—Determination of particle size by dry sieving GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 12690.19-2018 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 19:Determination of arsenic and mercury contents GB/T 29918-2023 Rare earth-based hydrogen storage alloys—Test method for measurement of pressure-composition isotherm(PCI) GB 39176-2020 Rare earth products packing,marking,transport and storage XB/T 622.1-2017 The Chemical Analysis of Rare Earth-based Hydrogen Storage Materials - Part 1: Determination of Total Rare Earth Content - Oxalate Weight Method XB/T 622.2-2017 Chemical analysis of rare earth-based hydrogen storage alloys - Part 2: Determination of nickel, lanthanum, cerium, praseodymium, neodymium, samarium, yttrium, cobalt, manganese, aluminum, iron, magnesium, zinc, copper and their respective proportions XB/T 622.5-2017 The Chemical Analysis Methods for Rare Earth-based Hydrogen Storage Alloys - Part 5: Determination of Carbon Content - High-Frequency Flame Infrared Absorption Method XB/T 622.6-2017 Rare earth hydrogen storage alloys chemical analysis method - Part 6: Determination of oxygen content - Pulse-heated infrared absorption method XB/T 622.7-2017 The Chemical Analysis Method of Rare Earth-based Hydrogen Storage Alloys - Part 7: Determination of Lead and Cadmium Content (XB/T 622.7-2017) GB/T 1480-2025 Metallic powders—Determination of particle size by dry sieving