GB/T 37363.1-2019 English PDF

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GB/T 37363.1-2019: Determination of biocides content of coating materials -- Part 1: Determination of isothiazolinones content
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37363.1-2019	279	Add to Cart	3 days	Determination of biocides content of coating materials -- Part 1: Determination of isothiazolinones content	Valid

Similar standards

GB/T 37362.1   GB/T 37356   GB/T 37363.2   GB/T 37363.4   GB/T 37363.3   GB/T 37361   

Basic data

Standard ID: GB/T 37363.1-2019 (GB/T37363.1-2019)
Description (Translated English): Determination of biocides content of coating materials -- Part 1: Determination of isothiazolinones content
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G50
Classification of International Standard: 87.040
Word Count Estimation: 14,179
Date of Issue: 2019-03-25
Date of Implementation: 2019-07-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37363.1-2019: Determination of biocides content of coating materials -- Part 1: Determination of isothiazolinones content

---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 biocides content of coating materials - Part 1. Determination of isothiazolinones content ICS 87.040 G50 National Standards of People's Republic of China Determination of biocide content in paints Part 1. Determination of isothiazolinone content Part 1.Determinationofisothiazolinonescontent Published on.2019-03-25 2019-07-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

GB/T 37363 "Determination of Biocide Content in Coatings" is divided into the following sections. --- Part 1. Determination of isothiazolinone content; --- Part 2. Determination of diuron content; This part is the first part of GB/T 37363. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part was proposed by the China Petroleum and Chemical Industry Federation. This part is under the jurisdiction of the National Coatings and Pigments Standardization Technical Committee (SAC/TC5). This section drafted by. CNOOC Changzhou Coating Chemical Research Institute Co., Ltd., Tianjin Custom Industrial Product Safety Technology Center, Foshan City Shunde Baidefu Industrial Co., Ltd., AVIC Baimu New Material Technology Engineering Co., Ltd., Guangdong Product Quality Supervision and Inspection Institute, Dow Chemical (China) Investment Co., Ltd., Lonza (China) Investment Co., Ltd., Thor Special Chemicals (Zhenjiang) Co., Ltd., Wanhua Chemical Group Co., Ltd., Shenzhen Guangtian Environmental Protection Coating Co., Ltd., Hebei Chenyang Industry and Trade Group Co., Ltd., Zhonghua Paint (Shenzhen) Co., Ltd. Company, Guangdong Jiabaoli Technology Materials Co., Ltd., Changzhou Guanghui New Materials Research Institute Co., Ltd., Zhuhai City, Guangdong Province Institute, PPG Coatings (Tianjin) Co., Ltd., Sanshu Paint Co., Ltd., Shanghai Jianke Inspection Co., Ltd. The main drafters of this section. Li Guangdong, Li Jinying, Li Jing, Lin Riping, Feng Linchang, Li Jun, Feng Yan, Liang Shuang, Zhang Junhang, Ling Zhenhua, Sun Jiakuan, Xu Xinxiang, Hu Zhongyuan, Wang Zhi, Ye Caiping, Zhao Shaohong, Li Jun, Wang Chengyu, Peng Yongsen, Yuan Jun. Determination of biocide content in paints Part 1. Determination of isothiazolinone content Cautions - Personnel using this section should have hands-on experience in formal laboratory work. This section does not point out all possible security questions. question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set by the relevant national regulations.

1 Scope

This part of GB/T 37363 specifies the determination of isothiazoline in coatings by liquid chromatography-mass spectrometry/mass spectrometry and liquid chromatography. Principles, reagents and materials, equipment, samples, test procedures, test data processing, detection limits, precision and ketone biocide content experiment report. This section applies to the determination of the content of isothiazolinone biocides in paints. Isothiazolinones in raw materials for paint films and coatings The determination of the biocide content can also be referred to this section.

2 Normative references

The following documents are indispensable for the application of this document. 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 3186 Paint, varnish and paint and varnish raw materials sampled GB/T 6682-2008 Analytical laboratory water specifications and test methods GB/T 12806-2011 laboratory glass instrument single standard line volumetric flask GB/T 12807-1991 Laboratory glass instrument indexing pipette GB/T 12808-2015 laboratory glass instrument single line suction tube

3 Principle

Liquid Chromatography-Mass Spectrometry/Mass Spectrometry. Using methanol as extraction solvent, ultrasonic extraction and centrifugation were combined to extract samples. Isothiazolinone biocide, determined by liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS), with retention time and selection Ion characterization, external standard method for quantification. Liquid Chromatography. Extraction of isothiazolinones from samples by ultrasonic extraction and centrifugation using methanol as extraction solvent The biocide is detected by liquid chromatography (LC), characterized by retention time, and quantified by external standard method. Note 1. Other confirmed suitable solvents can also be selected as the extraction solvent. Note 2. The liquid chromatograms in this section include high performance liquid chromatography (HPLC) and ultra performance liquid chromatography (UPLC).

4 reagents and materials

Unless otherwise specified, only reagents identified as analytically pure and above purity and those meeting the requirements of GB/T 6682-2008 are used in the analysis. First grade water. 4.1 Isothiazolinone calibration compounds such as MI, CMI, BIT, OIT, DCOIT. Note. CMI can also be used with known solutions. 4.2 Methanol. Chromatographically pure. ......

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