YS/T 524-2011 English PDF

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YS/T 524-2011: Synthetic scheelite
Status: Valid

YS/T 524: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 524-2011	189	Add to Cart	3 days	Synthetic scheelite	Valid
YS/T 524-2006	199	Add to Cart	2 days	Technical requirements of synthetic scheelite	Obsolete

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YS/T 656   GB/T 4325.5   GB/T 3458   YS/T 245   YS/T 516   YS/T 515   

Basic data

Standard ID: YS/T 524-2011 (YS/T524-2011)
Description (Translated English): Synthetic scheelite
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H63
Classification of International Standard: 77.150
Word Count Estimation: 7,763
Date of Issue: 2011-12-20
Date of Implementation: 2012-07-01
Older Standard (superseded by this standard): YS/T 524-2006
Quoted Standard: GB/T 1480; GB/T 4414; GB/T 6150.1; GB/T 6150.6; GB/T 6150.12; GB/T 6150.7; GB/T 6150.16; GB/T 6150.13; GB/T 6150.8; GB/T 6150.17; GB/T 6150.2; GB/T 6150.15; GB/T 6150.11; GB/T 6150.5; GB/T 6150.3; GB/T 6150.10; GB/T 6150.4; GB/T 6150.14; GB/T 6150.9
Regulation (derived from): ?MIIT Announcement 2011 No.43
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the requirements for synthetic scheelite, test methods, inspection rules, signs, packaging, transport, storage, quality certificates and contracts (or purchase orders) content. This standard applies to the resulting synthetic scheelite by smelting products (also known as calcium tungstate), for the production of ammonium paratungstate, tungsten trioxide, tungsten iron, Carbide, alloy steel, tungsten, tungsten alloys and other materials to use.

YS/T 524-2011: Synthetic scheelite

---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.
Synthetic scheelite ICS 77.150 H63 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 524-2006 Synthetic scheelite Issued on. 2011-12-20 2012-07-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

Instead of the standard YS/T 524-2006 "synthetic scheelite technical conditions." This standard YS/T 524-2006 compared to the main changes are as follows. --- Synthetic scheelite grade consists of six adjusted to 8; --- Chemical composition made appropriate adjustments; --- Test methods and inspection rules have been modified. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard was drafted. Ganzhou Nonferrous Metallurgy Research Institute. The main drafters of this standard. Pan Jianzhong, Liu Bolu, Wang Linsheng, pipe Jianhong Wu Siping, Xieshi Yong, Tian Yonghong. This standard replaces the standards previously issued as follows. --- GB/T 5192-1985, YS/T 524-2006. Synthetic scheelite

1 Scope

This standard specifies requirements for synthetic scheelite, test methods, inspection rules, marking, packaging, transportation, storage, quality certificate and contract (or Orders) content. This standard applies to income by smelting synthetic scheelite product (also known as calcium tungstate), for the production of ammonium paratungstate, tungsten trioxide, tungsten, iron, hard alloy Gold, steel, tungsten, tungsten alloys and other materials to use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 1480 Determination of particle size metal powder dry sieving GB/T 4414 Packaging tungsten concentrates sampling and sample preparation method GB/T 6150 (all parts) Methods for chemical analysis of tungsten concentrates

3 Requirements

3.1 Categories Product chemical composition and smelting methods are divided into two categories, eight grade. Where the class Ⅰ products for pyrometallurgical smelting, Ⅱ products for By hydrometallurgy. 3.2 Chemical composition Chemical composition of the product shall comply with the provisions in Table 1. Dry synthetic scheelite ore grade calculations. Table 1 chemical composition of the mass fraction of synthetic scheelite /% Grade category WO3 (not less than) Impurities (less than) SP As Mo Mn Cu Sn SiO2 Sb Ⅰ class Super 68 0.30 0.03 0.06 0.05 0.50 0.06 0.15 2.00 0.01 A 65 0.60 0.05 0.10 0.08 1.00 0.10 0.20 3.00 0.02 Two 60 0.80 0.10 0.15 0.10 1.50 0.20 0.20 4.00 0.02 Three 55 1.00 0.10 0.20 0.15 2.00 0.30 0.20 10.00 0.06 Ⅱ class Super 68 0.30 0.03 0.06 0.05 0.50 0.10 0.20 2.00 0.01 A 65 0.60 0.10 0.10 0.10 1.00 0.25 0.30 3.00 0.02 Two 60 0.80 0.10 0.20 0.15 1.50 0.35 0.30 4.00 0.02 Three 55 1.00 0.10 0.20 0.20 2.00 0.40 0.30 10.00 0.06 Note. the demand side of the table there is no specified impurity special requirements, negotiated by both parties to resolve. ......

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