H68 贵金属及其合金 标准查询与下载
共找到 408 条与 贵金属及其合金 相关的标准，共 28 页
本文件适用于化工、医疗等行业用锇酸钾。
Potassium osmate
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2022-09-30
- 实施
- 2023-04-01
本文件适用于化工催化剂、汽车尾气净化、制药行业、合成铑系列化合物所用的水合三氯化铑。
Rhodium trichloride hydrate
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2022-09-30
- 实施
- 2023-04-01
本文件适用于电镀及催化剂制备行业用的二亚硝基二氨铂。
dinitrosodiammonium platinum
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2022-09-30
- 实施
- 2023-04-01
本文件适用于太阳能电池正面浆料用球形银粉。
Spherical silver powder for solar cell front side paste
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2022-09-30
- 实施
- 2023-04-01
本文件适用于载体催化剂制备行业用的二碳酸氢根四氨合铂。
Tetraammine platinum(II) dibicarbonate
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2022-09-30
- 实施
- 2023-04-01
本文件适用于化工催化剂、金属阳极涂层用的氯铱酸。
Iridic acid chloride
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2022-09-30
- 实施
- 2023-04-01
本文件适用于总厚度不小于4mm的银-钢复合板。
Silver-Steel Composite Panel
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2022-09-30
- 实施
- 2023-04-01
Hexahydroxyplatinic acid bis(ethanolammonium) solution
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2021-12-02
- 实施
- 2022-04-01
Precious metal utensils Part 3: Gold utensils
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2021-12-02
- 实施
- 2022-04-01
Polycrystalline silicon prepares silver plate for furnace lining
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2021-12-02
- 实施
- 2022-04-01
Energy consumption limit per unit product of precious metal smelting in the non-ferrous metal industry
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2021-05-17
- 实施
- 2021-10-01
This document specifies a cupellation method (fire assay) for the determination of gold on a material considered homogeneous. The gold content of the sample lies preferably between 100 and 999,5 parts per thousand (‰) by weight. Fineness above 999,5 ‰ can be determined using a spectroscopy method by difference (e.g. ISO 15093). The procedure is applicable to most types of gold samples. Some modifications are indicated for specific cases (presence of large amount of base metals, platinum or palladium, silver). It is not compatible with the presence above trace levels of iridium, rhodium and ruthenium (more than 0,25 ‰ for the sum of all three elements). This method is also intended to be used as the recommended method for the determination of fineness in jewellery alloys covered by ISO 9202.
Jewellery and precious metals - Determination of gold - Cupellation method (fire assay)
- ICS
- CCS
- H68
- 发布
- 2021-03-00
- 实施
Silver Palladium Thick Film Conductor Paste
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2020-12-09
- 实施
- 2021-04-01
Iridium matrix for spectroscopic analysis
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2020-12-09
- 实施
- 2021-04-01
Platinum matrix for spectroscopic analysis
- ICS
- 77.150.99
- CCS
- H68
- 发布
- 2020-12-09
- 实施
- 2021-04-01
