YS/T 674-2008 English PDF

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YS/T 674-2008: 4N Stibium
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 674-2008	169	Add to Cart	3 days	4N Stibium	Valid

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Basic data

Standard ID: YS/T 674-2008 (YS/T674-2008)
Description (Translated English): 4N Stibium
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H62
Classification of International Standard: 77.150.99
Word Count Estimation: 6,614
Date of Issue: 2008-03-12
Date of Implementation: 2008-09-01
Quoted Standard: GB/T 1250; GB/T 3253; 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 requirements 4N antimony products, test methods, inspection rules, packaging, labeling, transportation and storage. This standard applies to more than 98. 5% of antimony raw materials, intermediate alkaline volatile melting, vacuum distillation and the obtained purity of not less than 99. 99% of the metal antimony. This product is mainly used for the preparation thermoelectric devices, alloy and ultra pure and ultra pure antimony raw materials.

YS/T 674-2008: 4N Stibium

---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.
4N Stibium ICS 77.150.99 H62 People's Republic of China Nonferrous Metals Industry Standard 4N antimony Posted 2008-03-12 2008-09-01 implementation National Development and Reform Commission issued

Foreword

This standard by the National Standardization Technical Committee of non-ferrous metals and centralized. This standard by the Sichuan Xin Ju Mineral Resources Development Co., Ltd. is responsible for drafting. The main drafters of this standard. keep Bingsheng, Liu Peiyan, Shou Chuan, Hou Liwei, He Zhifei, Wang Dingchun. 4N antimony

1 Scope

This standard specifies the requirements 4N antimony products, test methods, inspection rules, packaging, labeling, transportation and storage. This standard applies to more than 98.5% of the antimony-containing raw material, intermediate frequency alkaline volatile melting, vacuum distillation and the obtained purity is not small To 99.99% of the metal antimony. This product is mainly used for the preparation of a thermoelectric device, alloy and ultra-pure and ultra-pure antimony raw materials.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. 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 3253 (all parts), chemical analysis of antimony GB/T 8170 digital rounding rules

3 Requirements

3.1 Chemical composition 4N antimony chemical composition shall comply with the requirements in Table 1. Table 1 4N antimony chemical composition Trademark Chemical composition (mass fraction) /% Sb, not less than Impurity content of not more than Cu Ag Mg Ni Zn Bi Sb-4N 99.99 0.0002 0.0001 0.0002 0.0001 0.0002 0.0025 Trademark Chemical composition (mass fraction) /% Impurity content of not more than Mn Fe Cd As Pb Si Sb-4N 0.0001 0.0002 0.0002 0.0025 0.0025 0.0006 Antimony content of 3.2 (mass fraction) is 100% minus the impurities listed in Table 1, the sum of the actual margin. 3.3 appearance quality 4N antimony irregular lumps or granular, silvery white, the surface clean, no slag, no oxidation stain and shrinkage. 3.4 Users of the product are subject to special requirements, negotiated by the supply and demand sides. Test Method 4 Analysis of the chemical composition of arbitration according to the provisions of antimony 4.1 GB/T 3253 progresses, or by both parties through consultation. 4.2 Appearance quality by visual inspection of antimony.

5 Inspection Rules

5.1 inspection and acceptance 5.1.1 Products should be for the quality supervision and inspection departments to ensure that products meet this standard or purchase order (or contract) regulations. And fill ......

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