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GB/T 26033-2010: Ammonium metatungstate
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| GB/T 26033-2010 | English | 169 |
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Ammonium metatungstate
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GB/T 26033-2010
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Basic data | Standard ID | GB/T 26033-2010 (GB/T26033-2010) | | Description (Translated English) | Ammonium metatungstate | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H71 | | Classification of International Standard | 77.160 | | Word Count Estimation | 7,793 | | Date of Issue | 1/10/2011 | | Date of Implementation | 10/1/2011 | | Quoted Standard | GB/T 4324.1; GB/T 4324.2; GB/T 4324.3; GB/T 4324.4; GB/T 4324.5; GB/T 4324.6; GB/T 4324.7; GB/T 4324.8; GB/T 4324.10; GB/T 4324.11; GB/T 4324.12; GB/T 4324.13; GB/T 4324.15; GB/T 4324.17; GB/T 4324.18; GB/T 4324.19; GB/T 4324.20; GB/T 4324.21; GB/T 4324.22; GB/T 4324.23; GB/T 4324.24; GB/T 4324.25; GB/T 4324.26; GB/T 4324.27; GB/T 4324.28; GB/T 4324.29; GB/T 4324.30; GB/T 5314; GB/T 23368.1, | | Regulation (derived from) | Announcement of Newly Approved National Standards 2011 No. (No. 166 overall) 1 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Standard specifies requirements metatungstate, test methods, inspection rules, marking, packaging, transportation, storage, quality certificates and contracts (or orders) content. This Standard is applicable to the petrochemical industry and tungsten metatungstate used deep-processing industry. | GB/T 26033-2010: Ammonium metatungstate---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.
Ammonium metatungstate
ICS 77.160
H71
National Standards of People's Republic of China
Ammonium paratungstate
Issued on. 2011-01-10
2011-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized.
This standard was drafted. Chenzhou Diamond Tungsten Products Co., Ltd., Zhuzhou Cemented Carbide Group Limited.
The main drafters of this standard. Jiangwen Wei, Peng Zehui, Liang Weidong, Wang Rong Yan, Liu Tiemei, Li Chun-hai.
Ammonium paratungstate
1 Scope
This standard specifies the ammonium metatungstate requirements, test methods, inspection rules, marking, packaging, transportation, storage, quality certificate and contract (or
Orders) content.
This standard applies to the petrochemical industry as well as ammonium metatungstate tungsten processing industry used.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the edition are not applicable to the present
file. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 4324 (all parts), chemical analysis of tungsten
GB/T 5314 sampling method powder metallurgy
GB/T 23368.1 metatungstate chemical analysis methods - Part 1. Determination of the amount of water insoluble weighing method
3 Requirements
3.1 Categories
Products according to the production process, divided into AMT-P AMT-J and two grades. Wherein the AMT-P is a spray process for the production of products,
AMT-J for the crystallization process for the production of products.
3.2 Chemical composition
Ammonium paratungstate chemical composition shall comply with the requirements in Table 1.
Table 1 mass fraction /%
Grade AMT-P AMT-J
WO3 content ≥90.0 ≥81.5
Impurities
(In terms WO3),
no greater than
Al 0.0010
As 0.0010
Bi 0.0001
Ca 0.0015
Co 0.0010
Cr 0.0010
Cu 0.0005
Fe 0.0020
K 0.0010
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