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GB/T 41225-2021: Limit and determination of free phenols in phenoxy carboxylic acid herbicides
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Limit and determination of free phenols in phenoxy carboxylic acid herbicides
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GB/T 41225-2021
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Basic data | Standard ID | GB/T 41225-2021 (GB/T41225-2021) | | Description (Translated English) | Limit and determination of free phenols in phenoxy carboxylic acid herbicides | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G23 | | Word Count Estimation | 12,111 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41225-2021: Limit and determination of free phenols in phenoxy carboxylic acid herbicides---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.
Limit and determination of free phenols in phenoxy carboxylic acid herbicides
ICS 65:100
CCSG23
National Standards of People's Republic of China
Limits and detection methods of free phenols in phenoxycarboxylic acid herbicides
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
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"
drafted:
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by China Petroleum and Chemical Industry Federation:
This document is under the jurisdiction of the National Pesticide Standardization Technical Committee (SAC/TC133):
This document was drafted by: Shenyang Shenhua Institute Testing Technology Co:, Ltd:, Anhui Fengle Agrochemical Co:, Ltd:, Jiamusi Heilong Pesticide Co:, Ltd:
Co:, Ltd:, Shenzhen Nuopusin Agrochemical Co:, Ltd:, Shandong Weifang Runfeng Chemical Co:, Ltd:, Zhejiang Xin'an Chemical Group Co:, Ltd:
Company, Shenyang Chemical Research Institute Co:, Ltd:
The main drafters of this document: Yang Wenhan, Wang Wanqiu, Zhang Banglin, Xiao Caigen, Zhang Dan, Zhang Jiayue, Wang Fang, Tian Maoying, Chen Genliang, Wang Youxin:
Limits and detection methods of free phenols in phenoxycarboxylic acid herbicides
1 Scope
This document specifies the limit requirements for free phenols in phenoxycarboxylic acid herbicides and describes their detection methods:
This document is applicable to the quality control of phenoxycarboxylic acid herbicide products, and can also be used as the basis for conformity assessment and management activities:
Note: See Appendix A for the names and structural formulas of the main free phenols:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 8170-2008 Numerical Rounding Rules and Representation and Judgment of Limit Values
3 Terms and Definitions
The following terms and definitions apply to this document:
3:1
Phenoxycarboxylicacidherbicides
A class of herbicides synthesized from 2,4-dichlorophenol or 4-chloro-o-cresol as the main raw material:
Note: Such as 2,4-drop (2,4-D) and 2 methyl 4 chloride (MCPA) and its derivative compounds salts and esters, etc:
3:2
2,4-Dseries2,4-Dseries
A series of herbicides with 2,4-dichlorophenoxycarboxylic acid as the main structure:
Note: Including 2,4-D acid (salt), 2,4-D butyl ester, 2,4-D isooctyl ester and other technical and preparation products:
3:3
2 A 4 Chlorine Series MCPAseries
A series of herbicides with 2-methyl-4-chlorophenoxycarboxylic acid as the main structure:
Note: Including 2 methyl 4 chlorine (salt), 2 methyl 4 chloroisooctyl ester and other technical and preparation products:
3:4
freephenols
Phenoxycarboxylic acid herbicides are the general term for the free phenolic substances that remain in the product after production and processing:
4 Limit Requirements
The limit of free phenol in phenoxycarboxylic acid herbicides should meet the requirements in Table 1:
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