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GB/T 1421-2018 English PDF

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GB/T 1421-2018: Rhodium powder
Status: Valid

GB/T 1421: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 1421-2018English359 Add to Cart 4 days [Need to translate] Rhodium powder Valid GB/T 1421-2018
GB/T 1421-2004English359 Add to Cart 3 days [Need to translate] Rhodium powder Obsolete GB/T 1421-2004
GB/T 1421-1989English319 Add to Cart 3 days [Need to translate] Rhodium powder Obsolete GB/T 1421-1989

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Basic data

Standard ID GB/T 1421-2018 (GB/T1421-2018)
Description (Translated English) Rhodium powder
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H68
Classification of International Standard 77.150.99
Word Count Estimation 18,175
Date of Issue 2018-09-17
Date of Implementation 2019-06-01
Older Standard (superseded by this standard) GB/T 1421-2004
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 1421-2018: Rhodium powder

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Rhodium powder ICS 77.150.99 H68 National Standards of People's Republic of China Replace GB/T 1421-2004 Powder Published on.2018-09-17 2019-06-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 1421-2004 "铑粉", compared with GB/T 1421-2004, except for editorial changes, major technical changes as follows. --- Delete the description of calcium in the chemical composition of tantalum powder; --- Increase the loss of sputum powder burning should not exceed 0.10%; --- Amend Appendix A to "Inductively Coupled Plasma Atomic Emission Spectrometry for the Determination of Impurity Elements in Tantalum Powder", and also be determined by reference YS/T 363; --- Add Appendix B "Determination of the amount of sputum burning loss of hydrogen reduction weight method". This standard was proposed by the China Nonferrous Metals Industry Association. This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). This standard was drafted. Guiyan Resources (Yimen) Co., Ltd., Jinchuan Group Co., Ltd., Nonferrous Metals Technology and Economic Research Institute, Jiang West Hanshi Precious Metal Co., Ltd., Guangdong Industrial Analysis and Testing Center, Xi'an Kaili New Materials Co., Ltd., Zhejiang Weitong Catalyst New Materials Co., Ltd., Xuzhou North Mine Metal Recycling Research Institute. The main drafters of this standard. He Xiaotang, Xiong Qingfeng, Wu Xilong, Xiang Lei, Zhong Linbo, Yu Fengshan, Xiong Xiaoyan, Sun Jie, Wei Xiaojuan, Gong Weixing, Liu Wen, Zhao Yu, Wang Huan, Li Yong, Tan Wenjin, Li Hongmei, Lin Bo, Li Wei, Zhang Wenqi, Zhang Xuandong, Zheng Yun, Yang Hongyu, Tang Weixue, Tan Xiaoyan, Ma Yinbiao, Julia. The previous versions of the standards replaced by this standard are. ---GB/T 1421-1978, GB/T 1421-1989, GB/T 1421-2004. Powder

1 Scope

This standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation, storage, quality certificates and order forms (or Contract) content. This standard applies to powdered products.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. Emission Spectral Analysis of Impurity Elements in YS/T 363 Pure Germanium

3 requirements

3.1 Product Classification The powder is divided into three grades according to the content of 铑. SM-Rh99.99, SM-Rh99.95, SM-Rh99.9. 3.2 Chemical composition and loss of ignition 3.2.1 The chemical composition of tantalum powder should meet the requirements of Table 1. Table 1 Grade SM-Rh99.99 SM-Rh99.95 SM-Rh99.9 铑 content, not less than 99.99 99.95 99.9 Pt 0.003 0.02 0.03 Ru 0.003 0.02 0.04 Ir 0.003 0.02 0.03 Pd 0.001 0.01 0.02 Au 0.001 0.02 0.03 Ag 0.001 0.005 0.01 Cu 0.001 0.005 0.01 Fe 0.002 0.005 0.01 Ni 0.001 0.005 0.01 Al 0.003 0.005 0.01 Pb 0.001 0.005 0.01 Mn 0.002 0.005 0.01 Mg 0.002 0.005 0.01 Sn 0.001 0.005 0.01 Si 0.003 0.005 0.01 Zn 0.002 0.005 0.01 The sum of impurity elements is not more than 0.01 0.05 0.1 Note. The element control limits and analysis methods not specified in this table shall be determined by both parties.

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