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GB/T 30931-2014 English PDF

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US$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 30931-2014: Determination of Benzalkonium Chloride in cosmetics -- High performance liquid chromatography
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 30931-2014	259	Add to Cart	3 days	Determination of Benzalkonium Chloride in cosmetics -- High performance liquid chromatography	Valid

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Basic data

Standard ID: GB/T 30931-2014 (GB/T30931-2014)
Description (Translated English): Determination of Benzalkonium Chloride in cosmetics -- High performance liquid chromatography
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y42
Classification of International Standard: 71.100.70
Word Count Estimation: 11,128
Date of Issue: 7/8/2014
Date of Implementation: 11/1/2014
Quoted Standard: GB/T 6682
Regulation (derived from): 2014 National Standards Bulletin No. 18
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 a high performance liquid chromatographic method cosmetics of benzalkonium chloride. This standard applies to creams, shampoos, cosmetics agent etc. Determination of benzalkonium chloride. The standard method detection limit of 30

GB/T 30931-2014: Determination of Benzalkonium Chloride in cosmetics -- High performance liquid chromatography

---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 Benzalkonium Chloride in cosmetics.High performance liquid chromatography ICS 71.100.70 Y42 National Standards of People's Republic of China Determination of chloride content in cosmetics benzalkonium High Performance Liquid Chromatography Issued on. 2014-07-08 2014-11-01 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. 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. Country cosmetics Quality Supervision and Inspection Center (Beijing), Beijing Haidian District, product quality supervision, inspection, Shanghai City Daily Chemical Industry Institute. The main drafters of this standard. Liu Yanqin, Wang Hao, Shihai Liang, Yang Hongmei, GUO Qi Lei, Pan Hongyan, Li Qiong, Wu Xiao Jian, Shen Min, Qian Yan. Determination of chloride content in cosmetics benzalkonium High Performance Liquid Chromatography

1 Scope

This standard specifies a high performance liquid chromatographic method cosmetics of benzalkonium chloride. This standard applies to creams, shampoos, cosmetics agent etc. Determination of benzalkonium chloride. The standard method detection limit of 30mg/kg, the limit of quantification of 100mg/kg.

2 Normative references

The 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 Analysis Principle 3 Methanol solution by ultrasound sample containing 0.5% formic acid extraction, rotary evaporator enriched extract after separation by SCX column using diode Array detector its accurate analysis, external standard, liquid chromatography - mass spectra.

4 Reagents and materials

Unless otherwise indicated, the reagents used were of analytical grade water as a water GB/T 6682 regulations. 4.1 Methanol. chromatographically pure. 4.2 formic acid. Chromatographic pure. 4.3 acetonitrile. chromatography. 4.4 ammonium acetate. 4.5 triethylamine. 4.6 sodium chloride. 4.7 acetic acid. 50% aqueous methanol 4.8. Measure 500mL of methanol (4.1) was mixed with 500mL of water. 4.9 0.5% methanol solution of formic acid. Pipette 5mL acid (4.2) to 1000mL volumetric flask, methanol (4.1) volume. 4.10 standard sample. benzalkonium chloride (n-C12H25-C9H13NCl, n-C14H29-C9H13NCl, n-C16H33-C9H13NCl) standard sample of pure Not less than 99%. Benzalkonium chloride standard sample information, see Appendix A. 4.11 standard solution 4.11.1 three kinds of benzalkonium chloride (n-C12H25-C9H13NCl, n-C14H29-C9H13NCl, n-C16H33-C9H13NCl) standard stock solution. each Weigh 0.5g (accurate to 0.0001g) n-C12H25-C9H13NCl, n-C14H29-C9H13NCl, n-C16H33-C9H13NCl standard sample (4.10), were placed in 100mL flask, with 50% aqueous methanol (4.8) was dissolved constant volume. 4.11.2 benzalkonium chloride (n-C12H25-C9H13NCl, n-C14H29-C9H13NCl, n-C16H33-C9H13NCl) mixed standard working solution. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 30931-2014_English be delivered?

Answer: Upon your order, we will start to translate GB/T 30931-2014_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 30931-2014_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 30931-2014_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.