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Osmium powder
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YS/T 681-2008
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Basic data | Standard ID | YS/T 681-2008 (YS/T681-2008) | | Description (Translated English) | Osmium powder | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H68 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 9,968 | | Date of Issue | 2008-03-12 | | Date of Implementation | 2008-09-01 | | Quoted Standard | GB/T 1250; GB/T 8170 | | Regulation (derived from) | NDRC Notice No. 25 of 2008 | | Issuing agency(ies) | National Development and Reform Commission | | Summary | This standard specifies the osmium powder requirements, test methods, inspection rules, marking, packaging, transportation, storage and purchase order (or contract) content. This standard applies to all kinds of osmium powder ore smelting and comprehensive recovery of precious metals miscellaneous materials hungry preparing metal powder. |
YS/T 681-2008: Osmium 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.
Osmium powder
ICS 77.120.99
H68
People's Republic of China Nonferrous Metals Industry Standard
Osmium powder
Posted 2008-03-12
2008-09-01 implementation
National Development and Reform Commission issued
Foreword
Appendix A of this standard is a normative appendix.
This standard by the National Standardization Technical Committee of non-ferrous metals and centralized.
This standard by the Jinchuan Group Ltd. is responsible for drafting.
The main drafters of this standard. in Xiaoxia, Lin Hsiu-ying, Wang, Ling army.
Osmium powder
1 Scope
This standard specifies the requirements, test methods, inspection rules osmium powder, signs, packaging, transportation, storage and purchase order (or contract) content.
This standard applies to all types of osmium ore smelting and precious metals comprehensive recovery miscellaneous materials preparation of osmium metal powder.
2 Normative references
The following documents contain provisions referenced in this standard, constitute provisions of this standard. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Representation GB/T 1250 limit values and the method of determining
GB/T 8170 digital rounding rules
3 Requirements
3.1 Categories
Press osmium powder content is divided into two grades. SM-Os99.95, SM-Os99.90.
3.2 Chemical composition
Osmium powder chemical composition 3.2.1 shall comply with the requirements of Table 1.
Table 1 osmium powder chemical composition (mass fraction)%
Project SM-Os99.95 SM-Os99.90
Osmium content of not less than 99.95 99.90
Impurity content of not more than
Au 0.001 0.001
Mg 0.002 0.005
Si 0.02 0.03
Fe 0.02 0.03
Pt 0.001 0.001
Ni 0.002 0.005
Al 0.01 0.02
Ir 0.001 0.002
Pd 0.002 0.002
Cu 0.002 0.008
Ag 0.001 0.001
Rh 0.002 0.002
Total amount of impurities, not more than 0.05 0.10
3.2.2 osmium content (mass fraction) is 100% minus the sum of the impurity elements in the table Found margin.
3.3 Appearance
Osmium powder blue-gray metal powder, color should be uniform, no visual evidence of inclusions.
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