SN/T 1786-2006 English PDFUS$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 1786-2006: Determination of triclosan and triclocarban in cosmetics for import and export. Liquid chromatography method Status: Valid
Basic dataStandard ID: SN/T 1786-2006 (SN/T1786-2006)Description (Translated English): Determination of triclosan and triclocarban in cosmetics for import and export. Liquid chromatography method Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: Y42 Classification of International Standard: 71.100.70 Word Count Estimation: 6,678 Date of Issue: 2006-04-25 Date of Implementation: 2006-11-15 Regulation (derived from): Industry Standard Notice 2006 No. 7 (No. 79 overall) Issuing agency(ies): General Administration of Customs Summary: This standard specifies the cosmetics (including toothpaste) triclosan and triclocarban liquid chromatographic method. This standard applies to cosmetics (including toothpaste) triclosan and triclocarban determination. SN/T 1786-2006: Determination of triclosan and triclocarban in cosmetics for import and export. Liquid chromatography 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 triclosan and triclocarban in cosmetics for import and export.Liquid chromatography method People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard Determination of triclosan and triclocarban in imported and exported cosmetics Liquid chromatography 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 of this standard is an informative annex. 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. Bai Hua, Chen Wei, Hao Nan, Zhou Xin. This standard is the first industry standard for entry-exit inspection and quarantine. Determination of triclosan and triclocarban in imported and exported cosmetics Liquid chromatography1 ScopeThis standard specifies the liquid chromatographic method for determination of triclosan and triclocarban in cosmetics (including toothpaste). This standard applies to the determination of triclosan and triclocarban in cosmetics (including toothpaste).2 PrincipleTriclosan and triclocarban in cosmetics were extracted with methanol, and the extract was subjected to centrifugal filtration and then measured by high performance liquid chromatography. root According to its retention time qualitative, the external standard method is quantitative.3 reagents and materialsUnless otherwise stated, the reagents used were of analytical grade and the water was either secondary deionized water or re-distilled. 3.1 Methanol. chromatographically pure. 3.2 Triclosan and triclocarban. purity ≥ 99%. 3.3 Triclosan and triclocarban standard stock solution. accurately weigh the appropriate amount of triclosan and triclocarban (accurate to 0.1mg), formulated with methanol Standard stock solutions at a concentration of 1000 μg/mL. Dilute to a standard working solution of the appropriate concentration with methanol as needed.4 instruments4.1 High performance liquid chromatograph with UV detector. 4.2 Microsampler, 10 μL. 4.3 Ultrasonic cleaner. 4.4 Centrifuge. 4.5 Solvent filter 4.6 0.45 μm filter.5 Determination steps5.1 Sample processing Weigh about 0.5g (accurate to 1mg) of the cosmetic sample, place it in a 50mL stoppered conical flask, add 15mL of methanol, and remove it in the ultrasonic wave. Ultrasonic extraction in the scrubber for 20 min, the extract was transferred to a 25 mL volumetric flask, diluted to the mark with methanol, and mixed. Take a part of the solution and put it away In the heart tube, centrifuge at 10000r/min for 10min, and the supernatant after centrifugation at 10000r/min is filtered through the membrane (4.6). The liquid is determined by liquid chromatography. 5.2 Determination 5.2.1 Chromatographic conditions 5.2.1.1 Column. C8 column, 250 mm × 4.6 mm (inside diameter), 5 μm (particle size), or equivalent. 5.2.1.2 Mobile phase. methanol + water (77 + 23). 5.2.1.3 Flow rate. 1.0 mL/min. 5.2.1.4 Detection wavelength. 281nm. 5.2.1.5 Column temperature. room temperature. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 1786-2006_English be delivered?Answer: Upon your order, we will start to translate SN/T 1786-2006_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of SN/T 1786-2006_English with my colleagues?Answer: Yes. The purchased PDF of SN/T 1786-2006_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. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. |
