GB/T 36946-2018 English PDFUS$168.00 ยท In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 36946-2018: Leather -- Chemical tests -- Determination of polycyclic aromatic hydrocarbons -- Gas chromatography-mass spectrometry Status: Valid
Basic dataStandard ID: GB/T 36946-2018 (GB/T36946-2018)Description (Translated English): Leather -- Chemical tests -- Determination of polycyclic aromatic hydrocarbons -- Gas chromatography-mass spectrometry Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Y46 Classification of International Standard: 59.140.30 Word Count Estimation: 10,119 Date of Issue: 2018-12-28 Date of Implementation: 2019-07-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 36946-2018: Leather -- Chemical tests -- Determination of polycyclic aromatic hydrocarbons -- Gas chromatography-mass spectrometry---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. Leather--Chemical tests--Determination of polycyclic aromatic hydrocarbons--Gas chromatography--mass spectrometry ICS 59.140.30 Y46 National Standards of People's Republic of China Determination of polycyclic aromatic hydrocarbons in leather chemistry Gas chromatography-mass spectrometry Published on.2018-12-28 2019-07-01 implementation State market supervision and administration China National Standardization Administration issued ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Light Industry Association. This standard is under the jurisdiction of the National Leather Industry Standardization Technical Committee (SAC/TC252). This standard was drafted. National Leather Quality Supervision and Inspection Center (Zhejiang), Pinghu City Product Quality Supervision and Inspection Institute, Zhejiang University, Hangzhou Zhonghao Applied Engineering Technology Research Institute Co., Ltd., Dongguan Weiside Technology Development Co., Ltd., China Leather and Footwear Industry Research Institute. The main drafters of this standard. Shen Yun, Huang Xinxia, Yu Fengping, Fu Zheng, Zhou Linxia, Chen Hongbo, Wu Qian, Zhang Qiongyang, Zhang Huimin, Zhao Liguo, Step by step. Determination of polycyclic aromatic hydrocarbons in leather chemistry Gas chromatography-mass spectrometry Caution - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate 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 ScopeThis standard specifies the gas chromatography-mass spectrometry method for the determination of 16 polycyclic aromatic hydrocarbons in leather. This standard applies to the determination of 16 polycyclic aromatic hydrocarbons (see Appendix A) in leather and leather products.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. QB/T 2706 leather chemical, physical, mechanical and color fastness test sampling site QB/T 2716 Preparation of leather chemical test samples3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Polycyclic aromatic hydrocarbons (polycyclicaromatichydrocarbons); PAHs a series of hydrocarbon compounds and their derivatives fused by two or more benzene rings, which may also have short alkyl or naphthenic rings. Base substituent. [GB/T 28189-2011, definition 2.1]4 PrincipleThe sample is extracted by ultrasonic wave, and the extract is concentrated by rotary evaporation, and then purified by a solid phase extraction column on silica gel to determine the volume. Gas chromatograph (GC/MSD) was measured using a selective ion monitoring mode and quantified by external standard method.5 reagents and materials5.1 Dichloromethane, chromatographically pure. 5.2 n-hexane, chromatographically pure. 5.3 Acetone, analytically pure. 5.4 Extract, n-hexane-acetone mixture (volume ratio 1.1). 5.5 Eluent, n-hexane-dichloromethane (3.2 by volume). 5.6 16 polycyclic aromatic hydrocarbon reference materials. purity not less than 99.0% or known content, see Appendix A. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 36946-2018_English be delivered?Answer: Upon your order, we will start to translate GB/T 36946-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 36946-2018_English with my colleagues?Answer: Yes. 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