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YS/T 1021-2015: Potassium metavanadate
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YS/T 1021-2015	English	209	Add to Cart	3 days [Need to translate]	Potassium metavanadate

YS/T 1021-2015: Potassium metavanadate

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Potassium metavanadate ICS 77.150.99 H63 People's Republic of China Nonferrous Metals Industry Standard Potassium metavanadate Issued on. 2015-04-30 2015-10-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) and focal points. This standard was drafted. Dalian Borong New Materials Co., Ltd. Dalian Galaxy Metal Material Co., Ltd., Dalian still melt materials testing center Ltd., Dalian Chi Rong Materials Engineering Research Center Co., Ltd. The main drafters of this standard. Chen Yanbo, Hao Yue, Song Mingming, Zhao Hongwei, Dongchang Bin, Chou Jinguo. Potassium metavanadate

1 Scope

This standard specifies the potassium metavanadate requirements, test methods, inspection rules and signs, packaging, transportation, storage and quality certificate and ordering Single (or contract) content. This standard applies to the calcined vanadium-containing minerals, leaching, precipitation, dissolution, evaporation and crystallization, drying of potassium metavanadate.

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 190-2009 dangerous goods packaging logo GB/T 6284 General method for determination of chemical products, moisture loss on drying method GB/T 6678 General Principles for Sampling Chemical Products GB/T 6679 General rules for sampling solid chemical products GB/T 21524 Inorganic chemical products Determination of particle size sieve method Dangerous Chemicals Regulations (People's Republic of China State Council Decree No. 591)

3 Requirements

3.1 Categories Product chemical composition is divided into two levels. First Grade, Second Grade. 3.2 Chemical composition Chemical composition of the product shall comply with the requirements in Table 1. When the demand side, such as the chemical composition of the product have special requirements, agreed upon by both parties. Table 1 grade V (Quality fraction)/% K (Quality fraction)/% Impurity content (mass fraction) /%, not more than Cl Fe Mo As Cr Na First Grade ~ 36.6 ~ 37.0 28.0 28.5 0.01 0.01 0.01 0.002 0.005 0.2 Second Grade 36.0 ~ 27.5 ~ 36.6 28.0 0.01 0.02 0.01 0.005 0.010 0.5 3.3 Moisture content The moisture content of a product and the two products should not exceed 0.1%. 3.4 size Product size should be less than 1.0mm. ...