YS/T 1831-2025 Pending

YS/T 1831-2025

本文件描述了高锰酸钾滴定法测定复合氧化铜粉中铜和氧化亚铜含量,并差减计算氧化铜含量的方法。本文件适用于复合氧化铜粉( 即复合铜基材料、有机硅甲基、苯基单体合成用铜基催化材料) 中三组分( 即:铜-氧化亚铜-氧化铜,又称 Cu-Cu2O-CuO )含量的测定。

Publish Date: 2025-12-17

YS/T 1827-2025 Pending

YS/T 1827-2025 Nickel intermediate mix。

本文件规定了镍中间合金的产品分类、技术要求、试验方法、检验规则和标志、包装、运输、贮存及随行文件和订货单内容。本文件适用于高温合金和特种不锈钢用的镍中间合金。

Publish Date: 2025-12-17

YS/T 1826-2025 Pending

YS/T 1826-2025 Highly pure copper evaporation material

本文件规定了高纯铜蒸发料的分类和标记、技术要求、试验方法、检验规则、标志、包装、运输、贮存及随行文件和订货单内容。本文件适用于半导体行业用的高纯铜蒸发料,其他用途的高纯铜蒸发料也可参考使用。

Publish Date: 2025-12-17

YS/T 3047-2025 Active

YS/T 3047-2025 Gold mining fill-type expensive liquid pool technical requirements

本文件规定了黄金矿业填充式贵液池的结构、技术要求、生产使用与管理。 本文件适用于金矿石堆浸提金工艺。

Publish Date: 2025-09-09

YS/T 1792-2025 Active

YS/T 1792-2025 Copper trough wire for superconducting wire material

Publish Date: 2025-08-19

YS/T 1789-2025 Active

YS/T 1789-2025 Tin isooctanoate

Publish Date: 2025-08-19

YS/T 1788-2025 Active

YS/T 1788-2025 High-performance copper-nickel-tin alloy strip and foil

Publish Date: 2025-08-19

YS/T 63.21-2025 Active

YS/T 63.21-2025 Aluminum-based carbon materials testing method - Part 21: Determination of sintering/shrinkage of cathode paste

Publish Date: 2025-08-19

YS/T 63.18-2025 Active

YS/T 63.18-2025

Publish Date: 2025-08-19

YS/T 63.5-2025 Active

YS/T 63.5-2025 Aluminum-based ceramic materials testing methods - Part 5: Determination of sodium expansion rate with pressure-induced deformation for cathode carbon blocks

Publish Date: 2025-08-19

YS/T 575.9-2025 Active

YS/T 575.9-2025 Method for chemical analysis of bauxite - Part 9: Determination of potassium oxide and sodium oxide content - Flame atomic absorption spectrometry

Publish Date: 2025-08-19

YS/T 575.4-2025 Active

YS/T 575.4-2025 Method for chemical analysis of bauxite - Part 4: Determination of iron oxide content

Publish Date: 2025-08-19