GB/T 29660-2013 English PDFUS$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 29660-2013: Determination of chromium in cosmetics Status: Valid
Basic dataStandard ID: GB/T 29660-2013 (GB/T29660-2013)Description (Translated English): Determination of chromium in cosmetics Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Y42 Classification of International Standard: 71.100.70 Word Count Estimation: 9,953 Quoted Standard: GB/T 6682 Regulation (derived from): National Standards Bulletin 2013 No. 17 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies: flame atomic absorption spectrophotometry, determination of total chromium content in cosmetics by inductively coupled plasma mass spectrometry Method. This standard applies to: cosmetics total chromium content determined. When th GB/T 29660-2013: Determination of chromium in cosmetics---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 chromium in cosmetics ICS 71.100.70 Y42 National Standards of People's Republic of China Determination of total chromium content in cosmetics Issued on. 2013-09-06 2014-02-15 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee of Fragrance Flavor and Cosmetic (SAC/TC257) centralized. This standard was drafted. Shanghai Daily Chemical Industry Institute (Fragrance Flavor and Cosmetic National Quality Supervision and Inspection Centre) (France) Dalian City Product Quality Supervision, Inspection (National Day of Product Quality Supervision and Inspection Center) (second method). The main drafters of this standard. Zhao Tong, Xuying Hong, Wu Xiaojian, Maoxi Qin, Lin Yan, Shen Min, Jiang Jun, Lee, Zheng Shunli, Li Haiyan. Determination of total chromium content in cosmetics1 ScopeThis standard specifies the flame atomic absorption spectrophotometric determination of total chromium content in cosmetics by Inductively Coupled Plasma Mass Spectrometry method. This standard applies to the determination of total chromium in cosmetics. When the sample weight of 1g, the flame atomic absorption spectrophotometry for the detection limit 0.25mg/kg, limit of quantification was 0.83mg/kg; inductively coupled plasma mass spectrometry with a detection limit of 0.005mg/kg, the limit of quantification Of 0.015mg/kg.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis3 The first flame atomic absorption spectrophotometry3.1 Principle Samples were pretreated chromium is present in the form of ions in the sample solution, the sample solution is atomized chromium ion in the ground state atomic absorption of chromium Resonance line from chromium hollow cathode lamps emit, the absorbance is proportional to the chromium content in the sample. In other conditions remain unchanged, according to survey Spectral intensity of the amount absorbed, compared with standard series quantified. 3.2 Reagents and materials Unless otherwise specified, reagents were of analytical grade. Water as a water GB/T 6682 regulations. 3.2.1 nitric acid (ρ20 = 1.42g/mL), pure class distinctions. 3.2.2 nitrate (2.98 volume fraction). Take 20mL of nitric acid (3.2.1) added 980mL of water. 3.2.3 Hydrogen peroxide [w (H2O2) = 30%]. 3.2.4 octanol. 3.2.5 national standard chromium in water [ρ (Cr) = 0.100g/L]. 3.2.6 Chromium standard solution [ρ (Cr) = 10mg/L]. Take the national standard substances in water chromium [ρ (Cr) = 0.100g/L] 10.0mL placed 100mL volumetric flask, dilute to the mark with nitric acid (3.2.2). 3.3 instruments and equipment 3.3.1 atomic absorption spectrophotometer and accessories. 3.3.2 chromium hollow cathode lamp. 3.3.3 constant temperature water bath. 3.3.4 stoppered cuvette 25mL. 3.3.5 flask 25mL. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 29660-2013_English be delivered?Answer: Upon your order, we will start to translate GB/T 29660-2013_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 GB/T 29660-2013_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 29660-2013_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. |
