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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 42998-2023: Methods for the determination of prohibited substances in furniture products and related materials - Aldehydes and ketones Status: Valid
Basic dataStandard ID: GB/T 42998-2023 (GB/T42998-2023)Description (Translated English): Methods for the determination of prohibited substances in furniture products and related materials - Aldehydes and ketones Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Y80 Classification of International Standard: 97.140 Word Count Estimation: 14,154 Date of Issue: 2023-09-07 Date of Implementation: 2024-04-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 42998-2023: Methods for the determination of prohibited substances in furniture products and related materials - Aldehydes and ketones---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. ICS 97.140 CCSY80 National Standards of People's Republic of China Banned and restricted substances in furniture products and materials Determination method for aldehydes and ketones 2024-04-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee Table of contentsPreface III 1 Scope 1 2 Normative reference documents 1 3 Terms and Definitions 1 4 Principle 1 5 reagents or materials 2 6 Instruments and Equipment 3 7 Test Step 3 8 Test data processing 5 9 Precision and Accuracy6 10 Quality Assurance and Quality Control6 Appendix A (informative) Typical aldehydes and ketones monomers and their DNPH derivatives 8 Appendix B (Normative) Method detection limit and lower determination limit 9ForewordThis document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents. This document is proposed by China Light Industry Federation. This document is under the jurisdiction of the National Furniture Standardization Technical Committee (SAC/TC480). This document was drafted by. Shandong Product Quality Inspection Research Institute, Jiangxi Jinhu Insurance Equipment Group Co., Ltd., Anhui Gaoya Home Furnishing Co., Ltd., Shanghai Quality Supervision and Inspection Technology Research Institute, Shandong Jingbo Wood-based Materials Co., Ltd., Zhejiang Anji Yongfeng Furniture Co., Ltd., Shandong Datang Home Furnishing Co., Ltd., Wanhua Chemical Group Co., Ltd., China Building Materials Inspection and Certification Group Zaozhuang Co., Ltd., China Institute of Standardization, Qisheng Technology Co., Ltd., China Academy of Inspection and Quarantine, Shandong Jianzhu University, Jiangxi Jingxing Intelligent Technology Co., Ltd. Co., Ltd., Jiangxi Golden Oak Wood Industry Co., Ltd., Foshan Shunde District Longines Furniture Co., Ltd., Mousse Healthy Sleep Co., Ltd., Nanjing I Lejia Smart Home Manufacturing Co., Ltd., Zhongshan Vantage Smart Home Co., Ltd., Lejie Home Co., Ltd., Yigao Home Co., Ltd., Jiangxi Guangzheng Metal Equipment Group Co., Ltd., Jiangxi Wanqiao Furniture Group Co., Ltd., Jiangxi Yuanda Insurance Equipment Industrial Group Co., Ltd., Guangdong Piano Science and Art Home Furnishing Co., Ltd., Hefei Xuanmei Furniture Co., Ltd., Qingdao Huayi Youpin Intelligent Furniture Co., Ltd., Sui Ning County Shaji Town E-Commerce Association, Hebei Shuntian Intelligent Technology Development Group Co., Ltd. The main drafters of this document. Gao Cuiling, Luo Jufen, Sun Shengmin, Liu Mengmeng, Xiong Chunlin, Liu Xia, Lu Yongfeng, Zhou Zhijun, Guo Pengpeng, Wu Enkai, Li Jing, Zhang Qing, Gu Xiaobing, Zhu Yunxiao, Cao Zeming, Zhang Jinlin, Xiong Weiru, Gao Jiajia, Ke Zhiqing, Wang Liping, Yang Shengkun, Zheng Huanqi, Zhang Gencheng, Song Kaisen, Zhang Guiqin, Wang Chunjun, Wang Jingyun, Ding Xuedong, Ding Zhao, Xu Jie, Tang Zengsheng, Yin Xu, Yang Bo, Chen Guohua, Xu Di, Ma Libin, Tao Cunbao, Zhang Yonglai, Liu Ruibo, Meng Qingfeng. Banned and restricted substances in furniture products and materials Determination method for aldehydes and ketones1 ScopeThis document describes a high-performance liquid chromatography method for the determination of aldehydes and ketones in furniture products and their materials. This document is applicable to the determination of aldehydes and ketones released from furniture products and their raw materials.2 Normative reference documentsThe contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document. GB/T 6682 Specifications and test methods for water used in analytical laboratories3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 aldehydesandketones All carbonyl-containing volatile organic compounds released from furniture samples and detected in the air from the sampling port of the climate chamber. Note. Aldehyde and ketone compounds include but are not limited to formaldehyde, acetaldehyde, acrolein, acetone, benzaldehyde, butyraldehyde, n-valeraldehyde, 2,5-dimethylbenzaldehyde, crotonaldehyde, isopentyl aldehyde Aldehyde, propionaldehyde, hexanal, o-toluene formaldehyde, p-toluene formaldehyde, m-toluene formaldehyde, etc.4 PrinciplesSimulate the load-bearing state of furniture, and place the specimen in the air under certain conditions (temperature, relative humidity and air flow rate) according to the specified load-bearing rate. In the waiting cabin, the aldehyde and ketone compounds released by the furniture samples are mixed with the air entering the climate cabin and discharged from the cabin exit, using the adsorbent 2,4-bis Nitrophenylhydrazine (DNPH) captures aldehyde and ketone compounds in a certain volume of gas at the exit of the climate chamber, and uses analytical instruments to measure them. The release concentration of captured aldehyde and ketone compounds is calculated according to the release concentration, product loading rate and gas exchange rate of aldehyde and ketone compounds in furniture samples. release rate. The DNPH sampling tube actively collects a certain volume of climate cabin outlet air. The components of aldehyde and ketone compounds in the outlet air are related to the sampling tube. The DNPH reaction generates a stable derivative compound 2,4-dinitrophenylhydrazone. After elution with acetonitrile, it is separated by a reversed-phase liquid chromatography column equipped with UV Detector or secondary array tube detector, high performance liquid chromatography, and external standard method for quantification. 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