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GB/T 20412-2021: Fused calcium magnesium phosphate fertilizer
Status: Valid GB/T 20412: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 20412-2021 | English | 419 |
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4 days [Need to translate]
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Fused calcium magnesium phosphate fertilizer
| Valid |
GB/T 20412-2021
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| GB 20412-2006 | English | 519 |
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3 days [Need to translate]
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[GB/T 20412-2006] Calcium magnesium phosphate
| Obsolete |
GB 20412-2006
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PDF similar to GB/T 20412-2021
Basic data | Standard ID | GB/T 20412-2021 (GB/T20412-2021) | | Description (Translated English) | Fused calcium magnesium phosphate fertilizer | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G21 | | Word Count Estimation | 21,297 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 20412-2021: Fused calcium magnesium phosphate fertilizer---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.
Fused calcium magnesium phosphate fertilizer
ICS 65.080
CCSG21
National Standards of People's Republic of China
Replace GB/T 20412-2006
Calcium Magnesium Phosphate Fertilizer
Released on 2021-10-11
2022-05-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 20412-2006 "Calcium Magnesium Phosphate Fertilizer". Compared with GB/T 20412-2006, except for editorial changes, the main technical
The technical changes are as follows.
---Added the types of granular products, their size, average crush resistance and dissolution rate indicators (see 4.3) and test methods
(See 6.10, 6.11, 6.12);
---Changed the name and value of the alkali index (see 4.2 and 4.3, 3.2 in the.2006 edition);
---Increase the effective magnesium content, soluble silicon content index (see 4.2 and 4.3) and plasma emission spectrometry (ICP-OES) determination
Test methods for available calcium, available magnesium, and soluble silicon (see 6.6.2, 6.7.2, 6.8.2);
--- Increased the limit requirements for toxic and hazardous substances in products (see 4.4);
---The flow analyzer method is added to determine the effective phosphorus pentoxide content (see 6.4.3).
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed by the China Petroleum and Chemical Industry Federation.
This document is prepared by the National Fertilizer and Soil Conditioner Standardization Technical Committee Phosphate and Compound Fertilizer Sub-Technical Committee (SAC/TC105/SC3)
Focus.
Drafting organizations of this document. Zhengzhou University, Shanghai Research Institute of Chemical Industry Co., Ltd., Hubei Fubon Technology Co., Ltd., Xuanwei City Hengbang Phosphorus
Chemical Industry Co., Ltd., China Phosphate and Compound Fertilizer Industry Association, Zhengzhou Fuyilian Technology Co., Ltd., Yunnan Product Quality Supervision and Inspection Institute,
Shanghai Huanqiu Engineering Co., Ltd., Shanghai Chemical Industry Institute Testing Co., Ltd.
The main drafters of this document. Dong Xuesheng, Hou Cuihong, Wang Renzong, Yang Yingbao, Xiu Xuefeng, Wang Haobin, Wang Yanyu, Ta Dehong, Zhou Zhibin,
Cai Changli, Chen Lei, Sun Qian, Zhang Qiang, Zhang Hui, Liu Yu, Fan Chinese.
The previous versions of this document and the documents replaced are as follows.
---First published as GB/T 20412-2006 in.2006;
---This is the first revision.
Calcium Magnesium Phosphate Fertilizer
1 Scope
This document specifies the terms and definitions, requirements, test methods, inspection rules, labeling, packaging, transportation and storage of calcium magnesium phosphate fertilizers.
This document is applicable to phosphate rock and ore containing magnesium and silicon, which are prepared by high-temperature melting, water quenching, drying and other processes containing phosphorus, calcium, magnesium,
Alkaline glassy fertilizers with nutrients such as silicon, and granular products that are granulated into balls by adding additives in the production.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 6003.1 Technical requirements and inspection of test sieves Part 1.Metal wire woven mesh test sieves
GB/T 6679 General Rules for Sampling of Solid Chemical Products
GB/T 6682 Analytical laboratory water specifications and test methods
GB/T 8170 Numerical rounding rules and the expression and determination of limit values
GB/T 8569 Solid chemical fertilizer packaging
GB 18382 Fertilizer labeling content and requirements
GB/T 22923 Determination of Nitrogen, Phosphorus and Potassium in Fertilizers by Automatic Analyzer
GB/T 24891 Determination of particle size of compound fertilizer
GB 38400 Limit requirements for toxic and hazardous substances in fertilizers
HG/T 2843 Commonly used standard titration solution, standard solution, reagent solution and indicator solution for chemical analysis of fertilizer products
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Dissolutionrate
The degree to which granular products dissolve and disperse in still water within a certain period of time.
4 requirements
4.1 The appearance is powdery or sandy or granular, without mechanical impurities.
4.2 The technical indicators of powdered or sandy calcium-magnesium phosphate fertilizers should meet the requirements of Table 1, and should meet the indicated values.
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