GB/T 37039-2018 English PDF

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GB/T 37039-2018: Determination of harmful solvent in dye products
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37039-2018	219	Add to Cart	3 days	Determination of harmful solvent in dye products	Valid

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Basic data

Standard ID: GB/T 37039-2018 (GB/T37039-2018)
Description (Translated English): Determination of harmful solvent in dye products
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G55
Classification of International Standard: 71.100.01; 87.060.10
Word Count Estimation: 11,145
Date of Issue: 2018-12-28
Date of Implementation: 2019-11-01
Regulation (derived from): National Standard Announcement No. 17 of 2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37039-2018: Determination of harmful solvent in dye products

---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 harmful solvent in dye products ICS 71.100.01; 87.060.10 G55 National Standards of People's Republic of China Determination of harmful solvents in dye products Published on.2018-12-28 2019-11-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Dyestuff Standardization Technical Committee (SAC/TC134). This standard was drafted. Zhejiang Bauxite Co., Ltd., Yantai Jinhe Insurance Powder Factory Co., Ltd., China's chemical economic and technological development Center, Shenyang Chemical Research Institute Co., Ltd., National Dyestuff Quality Supervision and Inspection Center. The main drafters of this standard. Ding Xingcheng, Ji Hao, Wang Guoqing, Xue Yan, Zhao Guosheng, Pu Aijun, Chen Sujuan. Determination of harmful solvents in dye products 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 Scope

This standard specifies the determination methods for seven free-state hazardous solvents remaining in dye products (see Appendix A). This standard applies to the determination of the content of seven free hazardous solvents remaining in various types of dye products.

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 8170-2008 Numerical rounding rules and the representation and determination of limit values GB/T 9722-2006 General Rules for Gas Chromatography of Chemical Reagents

3 Test methods

3.1 Principle Using dichloromethane as the extractant, the sample was extracted by ultrasonic wave, and the extract was qualitatively analyzed by gas chromatography-mass spectrometry. Quantitative. 3.2 General provisions Unless otherwise specified, only reagents identified as analytically pure are used. The judgment of the test results shall be repaired according to 4.3.3 of GB/T 8170-2008. The value comparison method is carried out. 3.3 Reagents and materials 3.3.1 Hazardous solvent standards (see Appendix A). 3.3.2 Dichloromethane. 3.3.3 Methanol. Chromatographically pure. 3.4 Instruments and equipment 3.4.1 Gas Chromatography-Mass Spectrometer. equipped with a single quadrupole mass selection detector (MSD). 3.4.2 Gas chromatograph. equipped with a hydrogen flame ionization detector, the sensitivity and stability of the instrument should meet the requirements of GB/T 9722-2006. 3.4.3 Capillary column. inner diameter 0.25mm, length 30m, film thickness 1.0μm; stationary phase is poly(5% diphenyl/95% dimethyl) siloxane Alkanes, such as DB-5. 3.4.4 Microinjector or autosampler. 3.4.5 Chromatography workstation or integrator. ......

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