GB/T 41764-2022 English PDF

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GB/T 41764-2022: Determination of photo initiator content in radiation curable coatings - Gas chromatographic-mass spectrometric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41764-2022	269	Add to Cart	3 days	Determination of photo initiator content in radiation curable coatings - Gas chromatographic-mass spectrometric method	Valid

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Basic data

Standard ID: GB/T 41764-2022 (GB/T41764-2022)
Description (Translated English): Determination of photo initiator content in radiation curable coatings - Gas chromatographic-mass spectrometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G50
Classification of International Standard: 87.040
Word Count Estimation: 14,177
Date of Issue: 2022-10-14
Date of Implementation: 2023-02-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41764-2022: Determination of photo initiator content in radiation curable coatings - Gas chromatographic-mass spectrometric method

---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.
Determination of photoinitiator content in radiation curable coatings -- Gas chromatographic-mass spectrometric method ICS 87.040 CCSG50 National Standards of People's Republic of China Determination of Photoinitiator Content in Radiation Curing Coatings gas chromatography-mass spectrometry Published on 2022-10-12 2023-02-01 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 Standardization Technical Committee on Coatings and Pigments (SAC/TC5). This document is drafted by. Changzhou Guanghui New Materials Research Institute Co., Ltd., Zhejiang Youqian Special Materials Co., Ltd., Shanghai Customs Industrial Products and Raw Material Testing Technology Center, Guangzhou Longzhu Chemical Co., Ltd., Xiamen Bai'anxing New Materials Co., Ltd., Shenzhen Grandland Environmental Protection Coatings Co., Ltd., Ruitong Polymer Technology (Zhejiang) Co., Ltd., Zhejiang Chaolang New Materials Co., Ltd., Bonfort New Materials Co., Ltd., Jiangnan University, CNOOC Changzhou Coating and Chemical Research Institute Co., Ltd., Hunan Songjing New Materials Co., Ltd., Guangdong Huakun Construction Group Co., Ltd. Co., Ltd., Guohengxin (Changzhou) Testing and Certification Technology Co., Ltd., Fujian Shangruo Engineering Technology Co., Ltd., Shanghai Coatings Research Institute Co., Ltd. Company, Fujian Rongcheng Testing Technology Co., Ltd., Shandong Qilu Paint Co., Ltd., Guangdong Meitus Building Materials Co., Ltd., Shenzhen Youwei Technology Holding Group Co., Ltd., Fujian Provincial Transportation Construction Engineering Test and Testing Co., Ltd. The main drafters of this document. Zhou Xiangling, Zhao Shaohong, Chen Mengru, Ji Junhong, Yang Juan, Han Xudong, Dai Yanzhong, Wu Linrong, Yu Zongping, Yang Qingwei, Li Shizhen, Wang Yupeng, Wu Song, Liu Ren, Zhou Shengguang, Lin Jinzong, Pei Bei, Lin Shishi, Wang Qingjun, Xie Yinfeng, Wang Zhigang, Zhou Pingting, Li Jinghua and Cheng Yu. Determination of Photoinitiator Content in Radiation Curing Coatings gas chromatography-mass spectrometry Caution - Persons using this document should have practical experience in formal laboratory work. This document does not address all possible security issues question. It is the user's responsibility to take appropriate safety and health measures and to ensure compliance with the conditions stipulated by relevant national regulations.

1 Scope

This document specifies a method for the determination of photoinitiator content in radiation-cured coatings by gas chromatography-mass spectrometry. This document is applicable to the determination of volatile photoinitiator content in radiation-cured coatings and related materials, as well as radiation-cured coatings Determination of residual volatile photoinitiator content.

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 1727-2021 General preparation method of paint film GB/T 3186 Sampling of raw materials for paints, varnishes and paints and varnishes GB/T 12806-2011 Laboratory glass instrument single-line volumetric flask GB/T 20777 Inspection and preparation of paint and varnish samples

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 photoinitiator photoinitiator A reactive intermediate (free radical or cation) that can absorb radiation energy and undergo chemical changes upon excitation substance.

4 Principles

Using butyl acetate and other solvents as the extraction solvent, the photoinitiators in the test samples were extracted by ultrasonic. After the extract was quantified, it was analyzed by gas chromatography-mass spectrometry. Spectrometry was used for detection and external standard method for quantification.

5 Reagents and Materials

Unless otherwise specified, only reagents confirmed to be analytically pure and above are used in the analysis. 5.1 Butyl acetate. of analytical or known purity, does not contain any substances that interfere with the test. Alternatively, a proven recovery equivalent can be selected. Take a solvent, such as acetone, ethanol, ethyl acetate, acetonitrile, n-hexane, cyclohexane, etc. 5.2 Photoinitiator calibration compound. purity ≥98% (mass fraction) or known purity, list of commonly used photoinitiators for radiation curing coatings ......

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