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GB/T 3460-2017 English PDF

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GB/T 3460-2017: Ammonium molybdate
Status: Valid

GB/T 3460: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 3460-2017English199 Add to Cart 3 days [Need to translate] Ammonium molybdate Valid GB/T 3460-2017
GB/T 3460-2007English239 Add to Cart 3 days [Need to translate] Ammonium molybdate Obsolete GB/T 3460-2007
GB/T 3460-1982English199 Add to Cart 2 days [Need to translate] Technical requirements of ammonium molybdate Obsolete GB/T 3460-1982

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Basic data

Standard ID GB/T 3460-2017 (GB/T3460-2017)
Description (Translated English) Ammonium molybdate
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H63
Classification of International Standard 77.150.99
Word Count Estimation 10,165
Date of Issue 2017-09-29
Date of Implementation 2018-04-01
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

GB/T 3460-2017: Ammonium molybdate

---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 molybdate ICS 77.150.99 H63 National Standards of People's Republic of China Replacing GB/T 3460-2007 Ammonium molybdate 2017-09-29 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 3460-2007 "ammonium molybdate." This standard compared with GB/T 3460-2007, the following major changes. --- Revised product classification requirements; --- Modify the scope of molybdenum content; --- Increasing the requirements of Cr, Ti and other elements; --- Adjust the requirements of Ca, Mg, Na, K, W and other impurity elements; --- Revised product use requirements; --- Modify the loose density of the product; --- Increase the Fischer particle size of the technical indicators; --- Modify the product screening requirements; --- Increasing the product sample preparation requirements; --- Modify the product shelf life requirements. This standard is proposed by China Nonferrous Metals Industry Association. This standard by the National Standardization Technical Committee non-ferrous metals centralized (SAC/TC243). This standard was drafted unit. Jinduicheng Molybdenum Co., Ltd., Zhuzhou Cemented Carbide Group Co., Ltd., non-ferrous metal technology economic research Institute. The main drafters of this standard. Fan Jianjun, Wang Guo Liang, Lin Bai Chao, Xu Jianchang, Ma Zhijun, Yang Yan, Liu Yanbo, Liu Tiemei, Wu Yanhua. This standard replaces the standards previously issued as. --- GB/T 3460-1982, GB/T 3460-2007. Ammonium molybdate

1 Scope

This standard specifies the requirements of two ammonium molybdate, ammonium molybdate and ammonium heptamolybdate, test methods, inspection rules and signs, packaging, transportation, storage Deposit, quality certificate and contract (or purchase order) content. This standard applies to various methods of production of ammonium molybdate.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 1479 loose metal powder Determination of bulk density - Part 1. Funnel method GB/T 3249 Methods for determination of Fischer-Tropsch particle size of metals and their compounds GB/T 4325 (all parts) molybdenum chemical analysis methods GB/T 5314 powder metallurgy powder sampling method YS/T 555.1 Methods for chemical analysis of molybdenum concentrates - Determination of molybdenum content - Lead molybdate gravimetric method

3 requirements

3.1 product classification According to the chemical composition and use of different products, ammonium molybdate into MSA-0, MSA-1, MSA-2, MSA-3 four brands. press Physical performance is divided into specifications 1, size 2. 3.2 chemical composition The chemical composition of the grades should be consistent with the provisions of Table 1. Table 1 ammonium molybdate chemical composition% (mass fraction) Product Grade MSA-0 MSA-1 MSA-2 MSA-3 Molybdenum content of not less than 56.45 ± 0.40 Ammonium molybdate, Ammonium tetramolybdate ≥56.00, Ammonium heptamolybdate 54.35 ± 0.40 K 0.0060 0.0100 0.0150 0.0180 Na 0.0005 0.0008 0.0010 0.0015 Fe 0.0005 0.0005 0.0006 0.0010 Al 0.0005 0.0005 0.0006 0.0008 Si 0.0005 0.0005 0.0005 0.0010 Sn 0.0005 0.0005 0.0005 0.0010 Pb 0.0003 0.0005 0.0005 0.0005 P 0.0005 0.0005 0.0005 0.0010

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