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SN/T 3587-2016 English PDF (SNT3587-2013)

SN/T 3587-2016_English: PDF (SN/T3587-2016)
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SN/T 3587-2016English165 Add to Cart 0--9 seconds. Auto-delivery Textiles for import and export--Determination of residual admides solvent--Gas chromatography-mass spectrometry method Valid SN/T 3587-2016
SN/T 3587-2013English279 Add to Cart 3 days [Need to translate] Determination of N, N-dimethylformamide and N, N-dimethylacetamide in textile for import and export. Gas chromatography-Mass method Obsolete SN/T 3587-2013


BASIC DATA
Standard ID SN/T 3587-2016 (SN/T3587-2016)
Description (Translated English) Textiles for import and export--Determination of residual admides solvent--Gas chromatography-mass spectrometry method
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard W55
Classification of International Standard 59.080.01
Word Count Estimation 8,846
Date of Issue 2016-06-28
Date of Implementation 2017-02-01
Older Standard (superseded by this standard) SN/T 3587-2013
Drafting Organization Shenzhen Inspection and Quarantine Science Research Institute, the People's Republic of China Shenzhen Entry-Exit Inspection and Quarantine Bureau
Administrative Organization National Certification and Accreditation Administration Committee
Regulation (derived from) State-Quality-Inspection-Accredidation [2016] No.318
Proposing organization National Certification and Accreditation Administration Committee
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

BASIC DATA
Standard ID SN/T 3587-2013 (SN/T3587-2013)
Description (Translated English) Determination of N, N-dimethylformamide and N, N-dimethylacetamide in textile for import and export. Gas chromatography-Mass method
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard W55
Classification of International Standard 59.080.01
Word Count Estimation 7,755
Drafting Organization People's Republic of China Putian Entry-Exit Inspection and Quarantine Bureau
Administrative Organization National Certification and Accreditation Administration
Regulation (derived from) National quality recognition (2013), No. 464; industry standard filing Notice No. 1 of 2014 (No. 169 overall)
Proposing organization Certification and Accreditation Administration of the People's Republic of China
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Summary This standard specifies the textile N. N-dimethylformamide and N, N-dimethylacetamide and the residual mass of a latent potential vapor detection colors. This standard applies to the determination of textiles.


SN/T 3587-2016 SN ENTRY-EXIT INSPECTION AND QUARANTINE STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Replacing SN/T 3587-2013 Textiles for import and export - Determination of residual admides solvent - Gas chromatography-mass spectrometry method ISSUED ON: JUNE 28, 2016 IMPLEMENTED ON: FEBRUARY 01, 2017 Issued by: General Administration of Quality Supervision, Inspection and Quarantine of PRC Table of Contents Foreword ... 3  1 Scope ... 4  2 Principle ... 4  3 Reagents and materials ... 4  4 Instruments and equipment... 5  5 Analytical procedures ... 5  6 Calculation of results ... 7  7 Low limit of determination ... 7  8 Recovery rate ... 8  9 Precision ... 8  10 Test report ... 8  Appendix A (Informative) Reference qualitative and quantitative ions for amide compounds ... 9  Appendix B (Informative) Gas chromatography-mass spectrometry chromatogram of amide standard substances ... 10  Textiles for import and export - Determination of residual admides solvent - Gas chromatography-mass spectrometry method 1 Scope This standard specifies the gas chromatograph-mass spectrometry method, for the detection of 5 residual amide solvents (see Appendix A) in textiles. This standard applies to the determination of the 5 residual amide solvents in various textile materials and their products. 2 Principle The sample is ultrasonically extracted by methanol, concentrated to a constant volume. The sample solution is measured by a gas chromatography-mass spectrometer. It is subject to qualitative determination by full scan detection, AND quantification by external standard method by the use of selective ion. 3 Reagents and materials 3.1 Methanol: Chromatographically pure. 3.2 The 5 types of amide standard materials: Purity ≥ 95%; please refer to Appendix A. 3.3 Standard stock solution: Weigh the appropriate amount of amide standard substance (3.2), respectively. Use methanol (3.1) to prepare standard stock solution, which has a concentration of 1000 mL. Contain it in a brown bottle. Note: The standard stock solution is stored in a refrigerator at 0 °C ~ 4 °C in the dark. The validity period is 3 months. 3.4 Series of standard working solutions: Accurately pipette a certain volume of standard stock solution (3.3) as needed. Use methanol (3.1) to dilute it into a series of mixed standard working solutions of appropriate concentration. Note: The standard working solution is prepared before use. The linear range, which is measured under different working conditions by different instruments, is different. The linearity of the concentration range of the standard solution of 5 amide compounds, b) Column temperature: ; c) Inlet temperature: 230 °C: d) Temperature at the interface of mass spectrometer: 280 °C; e) Temperature of ion source: 220 °C; f) Quadrupole's temperature: 150 °C; g) Ionization method: EI; h) Ionization energy: 70 eV; i) Injection volume: 1.0 µL; j) Sampling mode: Pulse-split injection, which has a split ratio of 20:1; k) Carrier gas: Helium (purity ≥ 99.999%), which has a flow rate 0.8 mL/min; l) Solvent delay: 3 min; m) Measurement method: Full scan (SCAN) and selective ion monitoring (SIM) are performed at the same time. Refer to Appendix A for selective ions. 5.2.2 Qualitative and quantitative analysis by gas chromatography/mass spectrometry According to the content of the analyte in the sample solution, select a standard working solution, which has a similar concentration. The response values of the amide compounds in BOTH the standard working solution AND the sample solution to be tested shall be within the linear range of the instrument detection. Standard working solution and sample solution are interleaved at equal volume, for the purposes of determination. This standard uses the full scan mode for qualitative; it uses selective ion monitoring mode for quantitative. For the selection of qualitative ions and quantitative ions, refer to Appendix A. BOTH the standard solution AND the sample solution are tested according to the conditions specified in 5.2.1. If, in the sample solution, there appears a peak, at the same retention time as the standard solution, THEN, the selective ion shall be confirmed. Through confirmation and analysis, if all of the following conditions are met [Translator note: the sentences are restructured as follows]: - The retention time of the chromatographic peak of the analyte is consistent with that of the standard substance; 8 Recovery rate Quantitatively add a standard solution, which has an appropriate known concentration, into the specimen. Perform recovery rate analysis according to 5.2.1. The recovery rate of 5 types of amide compounds is 80% ~ 110%. 9 Precision In the same laboratory, when the same operator uses the same equipment, according to the same test method, to test the same tested object independently in a short time, the absolute value of the two test results obtained is not greater than 10% of the arithmetic mean of the two measured values, under the premise of 95% confidence. 10 Test report The test report shall at least provide the following: a) Sample source and description; b) The standards used; c) The test method used; d) Test results; e) Any details that deviate from this standard. ......


SN/T 3587-2013 Determination of N, N-dimethylformamide and N, N-dimethylacetamide in textile for import and export. Gas chromatography-Mass method People's Republic of China Entry-Exit Inspection and Quarantine Standards Import and export of textiles in N, N- dimethylformamide and N, N- dimethylacetamide Determination of GC-MS DeterminationofN, N-dimethylformamideandN, N-dimethylacetamideintextile Issued on. 2013-08-30 2014-03-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released Foreword This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. Exit Inspection and Quarantine People's Republic of China Putian, Quanzhou, People's Republic of China Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard. Cheng group, Tongyu Gui, Lin Bifen, Huang Ping, Fang Guangwei, Liang Ming, forest, Li Yijun, Fu Junyuan, Chen Shaohua, Zhang Baoxiu. Import and export of textiles in N, N- dimethylformamide and N, N- dimethylacetamide Determination of GC-MS 1 Scope This standard specifies the textiles N, N- dimethylformamide and N, N- dimethylacetamide Residues by Gas Chromatography - Mass Spectrometry method. This standard applies to the determination of textiles. Principle 2 N samples extracted with methylene chloride residues in an ultrasonic bath, of N- dimethylformamide and N, N- dimethylacetamide, and concentrated to volume After the sample solution by gas chromatography - mass spectrometry to detect the use of qualitative full scan detection, select ion external standard. 3 Reagents and materials Unless otherwise indicated, the reagents used were of analytical grade or higher purity reagents. 3.1 methylene chloride by gas chromatography - mass spectrometry examination without the presence of interference substances. 3.2 Methanol. chromatographically pure. 3.3 N, N- dimethylformamide (English name. N, N-Dimethylformamide, CAS number. 68-12-2, molecular formula. C3H7NO). Purity ≥98%. 3.4 N, N- dimethylacetamide (English name. N, N-Dimethylacetamide, CAS number. 127-19-5 molecular formula. C4H9NO). Purity ≥98%. 3.5 standard stock solution. Accurately weigh an appropriate amount of N, N- dimethylformamide and N, N- dimethylacetamide standards, respectively, with methanol (3.2) formulated at a concentration of 1000μg/mL standard stock solution, put in a brown bottle. NOTE. The standard stock solution at 0 ℃ ~ 4 ℃ refrigerator, valid for six months. 3.6 standard solution. diluted with methylene chloride mixed solution of appropriate concentration standard work needed. NOTE. The standard working solution at 0 ℃ ~ 4 ℃ refrigerator, valid for three months. 3.7 graphite carbon column (250mg, 3mL). dichloromethane with 3mL activated graphite carbon column, and kept moist. 3.8 microporous membrane. nylon filters, 0.2μm. 4 instruments and equipment 4.1 Gas chromatography - mass spectrometry. with EI source. 4.2 Analysis of balance. a sense of the amount of 0.01mg and 0.01g. 4.3 ultrasonic cleaning. the operating frequency of 40kHz. 4.4 rotary evaporator. 4.5 Reactor. a tube with a screw cap (polytetrafluoroethylene gaskets), about 50mL, made of hard glass. 4.6 concentrated bottle. 150mL. 4.7 plug tube. 10mL. ......

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