SN/T 1784-2006 English PDF
Basic dataStandard ID: SN/T 1784-2006 (SN/T1784-2006)Description (Translated English): Determination of dioxane residues in cosmetics for import and export. Gas chromatography-mass spectrometry method Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: Y42 Classification of International Standard: 71.100.70 Word Count Estimation: 8,871 Date of Issue: 2006-04-25 Date of Implementation: 2006-11-15 Quoted Standard: GB/T 6379 Regulation (derived from): Industry Standard Notice 2006 No. 7 (No. 79 overall) Issuing agency(ies): General Administration of Customs Summary: This standard specifies the use of gas chromatography mass spectrometry dioxane in cosmetics residues approach. This standard applies to cosmetics dioxane residues. This standard dioxane limit of determination: 2. 5mg/kg. SN/T 1784-2006: Determination of dioxane residues in cosmetics for import and export. Gas chromatography-mass spectrometry method---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 dioxane residues in cosmetics for import and export.Gas chromatography-mass spectrometry method People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard Determination of dioxane residues in cosmetics for import and export Gas chromatography tandem mass spectrometry Released on.2006-04-25 Implementation of.2006-11-15 People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued ForewordAppendix A and Appendix B of this standard are informative annexes. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted by the China Academy of Inspection and Quarantine. The main drafters of this standard. Wang Chao, Ji Meiqin, Wang Xing, Hao Nan, Cai Tianpei. This standard is the first industry standard for entry-exit inspection and quarantine. Determination of dioxane residues in cosmetics for import and export Gas chromatography tandem mass spectrometry1 ScopeThis standard specifies the method for the determination of dioxane residues in cosmetics by gas chromatography-mass spectrometry. This standard applies to the determination of dioxane residues in cosmetics. The lower limit of determination of this standard dioxane. 2.5mg/kg.2 Normative referencesThe terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard. GB/T 6379 Accuracy of measurement methods and results (correctness and precision) (all parts)3 PrincipleAfter the sample is heated and extracted in the headspace bottle, it is determined by gas chromatography-mass spectrometry (GC/MSD) method, and the external standard method is used for quantification. The test is made to determine.4 reagents and materialsUnless otherwise specified, the reagents used were of analytical grade and the water was secondary water. 4.1 Dioxane. purity 98%. 4.2 Dioxane standard stock solution. Accurately weigh the appropriate amount of dioxane standard (accurate to 0.0001g). Water is configured to a concentration of Standard stock solution of 1000 μg/mL. The stock solution is stored in a 4 ° C refrigerator and can be used for 2 months. 4.3 Dioxane standard working solution. The above (4.2) stock solution was separately mixed with methanol to a dioxane concentration of 0.1 μg/mL, 0.5 μg/mL, 1 μg/mL, 10 μg/mL, 20 μg/mL, 50 μg/mL, and 100 μg/mL standard working solution were stored at 4 ° C for 1 week.5 instruments5.1 Gas Chromatograph. equipped with a mass selective detector (MSD). 5.2 Headspace Sampler. 5.3 Headspace bottle. 20mL. 5.4 Analytical balance. Sensitivity 0.0001g. 5.5 Ultrasonic cleaning instrument.6 Determination steps6.1 Sample Processing Accurately weigh 2.0g of the mixed sample to the nearest 0.001g, place it in the headspace sample bottle, add 1g of sodium chloride solid, add 8mL of steam The distilled water was sealed, gently shaken, placed in a headspace sampler, and equilibrated at 70 ° C for 40 min. Take 1 mL of the upper gas after the gas is equilibrated. Into gas chromatography-mass spectrometry. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 1784-2006_English be delivered?Answer: Upon your order, we will start to translate SN/T 1784-2006_English as soon as possible, and keep you informed of the progress. The lead time is typically in 9 seconds (download/delivered in 9 seconds). The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of SN/T 1784-2006_English with my colleagues?Answer: Yes. The purchased PDF of SN/T 1784-2006_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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