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YS/T 692-2009 English PDF

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YS/T 692-2009: Tungstic acid
Status: Valid
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YS/T 692-2009English169 Add to Cart 3 days [Need to translate] Tungstic acid Valid YS/T 692-2009

PDF similar to YS/T 692-2009


Standard similar to YS/T 692-2009

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Basic data

Standard ID YS/T 692-2009 (YS/T692-2009)
Description (Translated English) Tungstic acid
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H63
Classification of International Standard 77.150.99
Word Count Estimation 6,633
Date of Issue 2009-12-04
Date of Implementation 2010-06-01
Quoted Standard GB/T 1479; GB/T 3249; GB/T 4324; GB/T 5314; YS/T 559
Regulation (derived from) MIIT [2009] No. 66
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies the tungstic acid requirements, test methods, inspection rules, marking, packaging, transportation, storage and purchase order (or contract) content. This standard applies to catalysts, auxiliaries, lubricants and plastics industries and ceramic industries with tungstate.

YS/T 692-2009: Tungstic acid

---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.
Tungstic acid ICS 77.150.99 H63 People's Republic of China Nonferrous Metals Industry Standard Tungstic acid 2009-12-04 released 2010-06-01 Implementation Issued by the Ministry of Industry and Information Technology of the People's Republic of China

Foreword

This standard is developed for the first time. This standard by the National Nonferrous Metals Standardization Technical Committee proposed and centralized. This standard is drafted by Fujian Jinxin Tungsten Industry Co., Ltd. The main drafters of this standard. Yan Qi, Wang Lixia, Tang Songzhao, Dong Wei, Shi Shiren, Lin Liping, Lin Guoxin. Tungstic acid

1 Scope

This standard specifies the requirements for tungstic acid, test methods, inspection rules, marking, packaging, transportation, storage and order (or contract) content. This standard applies to catalysts, printing auxiliaries, lubricants, and tungstic acid for the plastics industry and ceramic industry.

2 normative reference documents

The terms of the following documents are hereby incorporated by reference into this standard. Whichever is the date of the reference file, which is followed by all (Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard Whether you can use the latest version of these files. For undated references, the latest edition applies to this standard. Determination of bulk density of metallic powders - Part 1. Funnel method GB/T 1479 GB/T 3249 Methods for determination of particle size of metals and their compounds GB/T 4324 (all parts) tungsten chemical analysis method Sampling method of powder for powder metallurgy GB/T YS/T 559 Tungsten emission spectrometric method

3 request

3.1 Product Classification Products according to the chemical composition of WO3 and impurity element content requirements are divided into H2WO4-0, H2WO4-1, H2WO4-2 three Grade. 3.2 Chemical composition The chemical composition of the product shall comply with the provisions of Table 1. Table 1% Product Grade H2WO4-0 H2WO4-1 H2WO4-2 WO3 content (mass fraction), not less than 91.0 90.0 85.0 Impurity content (Mass fraction) no greater than Al 0.001 0.001 0.001 As 0.010 0.015 0.020 Bi 0.001 0.001 0.001 Ca 0.006 0.008 0.010 Co 0.001 0.001 0.001 Cr 0.001 0.001 0.001 Cu 0.001 0.001 0.001 Fe 0.003 0.003 0.004 K 0.001 0.002 0.003 Mg 0.001 0.001 0.001 Mn 0.001 0.001 0.001 Mo 0.015 0.020 0.030

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