Standards

XB/T 612.3-2025 Active

XB/T 612.3-2025 Nebula iron boron waste chemical analysis method Part 3: Determination of boron, cobalt, aluminum, copper, chromium, nickel, manganese, titanium, calcium, magnesium content by inductively coupled plasma atomic emission spectroscopy

This document describes the method of determining the boron, cobalt, aluminum, copper, chromium, nickel, manganese, titanium, calcium, and magnesium contents in neodymium-iron-boron waste materials using inductively coupled plasma emission spectrometry. This document is applicable to the determination of the boron, cobalt, aluminum, copper, chromium, nickel, manganese, titanium, calcium, and magnesium contents in neodymium-iron-boron waste materials.

Publish Date: 2025-12-17

XB/T 611-2025 Active

XB/T 611-2025 The Chemical Analysis of Oxalic Rare Earths: Determination of Ash Content by Weight Method

This document describes the method of determining the loss of rare earth in oxalic acid by weight. This document is applicable to the determination of the loss of rare earth in oxalic acid.

Publish Date: 2025-12-17

XB/T 607-2025 Active

XB/T 607-2025 Test method for coating materials of exhaust purification catalysts for gasoline vehicles/hybrid gasoline vehicles

This document describes the semi-quantitative analysis of the chemical components, particle size distribution, combustion loss rate, specific surface area, pore volume, pore diameter, and coating thickness of the catalyst coating materials in gasoline/hybrid gasoline vehicles' exhaust gas purification catalysts. This document is applicable to the analysis of three-way catalysts and particulate capture catalyst coating materials in gasoline/hybrid gasoline vehicles' exhaust gas purification catalysts.

Publish Date: 2025-12-17

XB/T 635-2025 Active

XB/T 635-2025 The Chemical Analysis Method for Cerium Magnesium Alloy Determination of Aluminum, Copper, Iron, Nickel, Zinc, La, Pr, Nd, Y and Gd Content - Spark Discharge Atomic Emission Spectroscopy

This document describes the method of determining the content of aluminum, copper, iron, nickel, zinc, lanthanum, praseodymium, neodymium, yttrium, and gadolinium in cerium-magnesium alloys using spark discharge atomic emission spectrometry. This document is applicable to the determination of the content of aluminum, copper, iron, nickel, zinc, lanthanum, praseodymium, neodymium, yttrium, and gadolinium in cerium-magnesium alloys.

Publish Date: 2025-12-17

XB/T 505-2025 Active

XB/T 505-2025 Gasoline-powered vehicle/Hybrid gasoline vehicle exhaust purification catalyst carrier

This document specifies the classification, specifications, and markings of exhaust purification catalyst carriers for gasoline vehicles/hybrid gasoline vehicles, as well as their technical requirements, testing methods, inspection rules and markings, packaging, transportation, storage, and accompanying documents. This document applies to through-type honeycomb ceramic carriers and wall-flow honeycomb ceramic carriers made from cordierite materials.

Publish Date: 2025-12-17

XB/T 634-2025 Active

XB/T 634-2025 The Chemical Analysis Methods of Praseodymium and Neodymium - Determination of Carbon, Iron, Molybdenum, Aluminum, Silicon and Praseodymium Content - Spark Discharge Atomic Emission Spectroscopy

本文件描述了用火花放电原子发射光谱法测定镨钕金属中的碳、铁、钼、铝、硅和镨含量的方法。本文件适用于镨钕金属中碳、铁、钼、铝、硅和镨含量的测定

Publish Date: 2025-08-19

XB/T 410-2025 Active

XB/T 410-2025 Erbium magnesium alloy

本文件规定了铒镁合金的分类和牌号、技术要求、试验方法、检验规则与标志、包装、运输、贮存及随行文件。本文件适用于熔配法生产的铒镁合金，作为主要添加剂用于汽车、航空航天和生物医用材料等领域的高强耐热可降解稀土镁合金制品

Publish Date: 2025-08-19

XB/T 409-2025 Active

XB/T 409-2025 lanthanum-cerium aluminum alloy

本文件规定了镧铈铝合金的分类、技术要求、试验方法、检验规则、标志、包装、运输、贮存及随行文件。本文件适用于熔配法生产的镧铈铝合金，主要作为添加剂用于生产铸造铝合金及变形铝合金

Publish Date: 2025-08-19

XB/T 307-2025 Active

XB/T 307-2025 Highly pure metal holmium

本文件规定了高纯金属钬的分类、技术要求、试验方法、检验规则、标志、包装、运输、贮存及随行文件。 本文件适用于真空精炼、真空蒸馏、区域熔炼等提纯方法制得的高纯金属钬，其主要用于钬铜合金、高纯金属钬靶材等。

Publish Date: 2025-04-10

XB/T 306-2025 Active

XB/T 306-2025 Highly pure erbium metal

本文件规定了高纯金属铒的分类、技术要求、试验方法、检验规则、标志、包装、运输、贮存及随行文件。 本文件适用于真空精炼、真空蒸馏、区域熔炼等提纯方法制得的高纯金属铒，主要用于生产高纯金属铒靶材、磁致蓄冷材料、反应堆中子控制材料和合金添加剂等。

Publish Date: 2025-04-10

XB/T 507-2024 Active

XB/T 507-2024 Sintered SmCo type 2:17 type permanent magnet material

This document is applicable to sintered samarium-cobalt permanent magnet materials of type 2:17 produced by powder metallurgy, which are mainly used in aerospace, microwave communication, electrical engineering, instrumentation, magnetic machinery, medical devices, and other fields.

Publish Date: 2024-10-24

XB/T 817-2024 Active

XB/T 817-2024 XB/T 817-2024 Rare Earth Fluorescent Powder Green Factory Evaluation Requirements

This document is applicable to the green factory evaluation of enterprises or production units engaged in the production of LED phosphors, rare earth trichromatic phosphors, long-afterglow phosphors, and special phosphors (including gadolinium europium oxide sulfate, phosphate phosphors, etc.).

Publish Date: 2024-03-29