YS/T 681-2008 English PDF

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YS/T 681-2008: Osmium powder
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 681-2008	239	Add to Cart	3 days	Osmium powder	Valid

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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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