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GB/T 29677-2013 English PDF

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US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 29677-2013: Determination of nitromethane in cosmetics -- Gas chromatography-mass spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 29677-2013	189	Add to Cart	3 days	Determination of nitromethane in cosmetics -- Gas chromatography-mass spectrometry	Valid

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Basic data

Standard ID: GB/T 29677-2013 (GB/T29677-2013)
Description (Translated English): Determination of nitromethane in cosmetics -- Gas chromatography-mass spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y42
Classification of International Standard: 71.100.70
Word Count Estimation: 8,882
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: cosmetics nitro methane gas chromatography mass spectrometry. This standard applies to: liquid, loose powder, shampoo, spray, lipstick cosmetics in nitro methane determination. The standard for nitrate methane a detection limit of

GB/T 29677-2013: Determination of nitromethane in cosmetics -- Gas chromatography-mass spectrometry

---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 nitromethane in cosmetics.Gas chromatography-mass spectrometry ICS 71.100.70 Y42 National Standards of People's Republic of China Determination of nitro methane in cosmetics Gas chromatography - mass spectrometry 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

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. 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. China Inspection and Quarantine Science Research Institute, Shanghai Institute of Daily Chemical Industry. The main drafters of this standard. Li Niimi, Wang Chao, Liu Qian, Ma Qiang, Yang Haifeng, Wang Hongwei, Lihai Yu Yang Mei-hong, Wu Xiao Jian, Kang Wei. Determination of nitro methane in cosmetics Gas chromatography - mass spectrometry

1 Scope

This standard specifies the cosmetics nitro methane gas chromatography - mass spectrometry. This standard applies to liquid, measuring methane loose powder, shampoo, spray, lipstick Cosmetics nitrate. The standard for nitrate methane detection limit of 0.1mg/kg, the limit of quantification of 0.2mg/kg. Principle 2 By solvent extraction of the sample, after centrifugation, solid phase extraction (SPE), gas chromatography - mass spectrometry, external standard.

3 Reagents and materials

Unless otherwise specified, the reagents were of analytical grade. 3.1 dichloromethane. chromatography. 3.2 Methanol. chromatographically pure. 3.3 ethanol. chromatography. 3.4 nitro methane standard substance. Formula CH3NO2, CAS No. 75-52-5, purity of not less than 99%, see Appendix A of the structural formula Figure A.1. 3.5 anhydrous sodium sulfate. After 650 ℃ burning 4h placed in the dryer. 3.6 nitro methane standard stock solution. accurately weighed amount nitro methane standard substance (accurate to 0.0001g), dichloromethane (3.1) formulated A concentration of 1000μg/mL standard stock solution, and stored in the dark at 4 ℃, can be used for three months. 3.7 15% -85% methanol in methylene chloride mixed solution. accurate amount of 15mL of methanol and 85mL of methylene chloride, mix and reserve. 3.8 80% -20% methanol in methylene chloride mixed solution. accurate amount of 80mL of methanol and 20mL of dichloromethane, after mixing spare.

4 instruments and equipment

4.1 Gas chromatography - mass spectrometry (GC-MS) instrument. with electron impact ionization (EI). 4.2 Analysis of balance. a sense of the amount of 0.0001g and 0.001g. 4.3 centrifuge. speed of not less than 5000r/min. 4.4 ultrasonic bath. 4.5 Solid phase extraction device. 4.6 nitrogen blowing instrument. 4.7 rotary evaporator. 4.8 heart-shaped bottle. 50mL. 4.9 stoppered conical flask. 50mL. 4.10 plug teflon tube. 50mL. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 29677-2013_English be delivered?

Answer: Upon your order, we will start to translate GB/T 29677-2013_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 29677-2013_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 29677-2013_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+ countries

Question 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.