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GB/T 32947-2016 English PDF

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US$119.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 32947-2016: Determination of octacosanol and triacontanol contents in beeswax -- Gas chromatography
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 32947-2016	119	Add to Cart	3 days	Determination of octacosanol and triacontanol contents in beeswax -- Gas chromatography	Valid

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Basic data

Standard ID: GB/T 32947-2016 (GB/T32947-2016)
Description (Translated English): Determination of octacosanol and triacontanol contents in beeswax -- Gas chromatography
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B47
Classification of International Standard: 65.140
Word Count Estimation: 6,623
Date of Issue: 2016-08-29
Date of Implementation: 2017-03-01
Quoted Standard: GB/T 6682
Regulation (derived from): National Standard Announcement 2016 No.14
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 the determination of octacosanol and triacontanol in beeswax. This standard applies to the determination of octacosanol and triacontanol in beeswax.

GB/T 32947-2016: Determination of octacosanol and triacontanol contents in beeswax -- Gas 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 octacosanol and triacontanol contents in beeswax.Gas chromatography ICS 65.140 B47 National Standards of People's Republic of China Determination of Octacosanol and Triacontanol in Beeswax Gas chromatography 2016-08-29 released 2017-03-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the All-China Federation of Supply and Marketing Cooperatives. This standard is the national bee product standardization working group. The drafting of this standard. Institute of Bee Research, Chinese Academy of Agricultural Sciences, Ministry of Agriculture Bee Product Quality Supervision, Inspection and Testing Center (Beijing), China Beekeeping Society. The main drafters of this standard. Li Yi, Xue Xiaofeng, Huang Jingping, Wu Jie, Wu Liming, Zhao Jing, Zhang Jinzhen, Zhou Jinhui, Chen Fang, Wang Peng, Chen Lanzhen. Determination of Octacosanol and Triacontanol in Beeswax Gas chromatography

1 Scope

This standard specifies the determination of octacosanol and triacontanol in beeswax. This standard is applicable to the determination of octacosanol and triacontanol in beeswax.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods

3 principle

After the sample was hydrolyzed by reflux, the octacosanol and triacontanol in the sample were extracted with chloroform and the extract was dried over anhydrous sodium sulfate Chemical and gas chromatographic flame ionization detector detection, external standard method quantitative.

4 Reagents and Materials

4.1 Unless otherwise stated, analytical pure reagents are used and water is the primary water specified in GB/T 6682. 4.2 Potassium hydroxide. 4.3 anhydrous sodium sulfate. Incubate at 650 ° C for 4 h before use. 4.4 Trichloromethane. 4.5 95% ethanol. 4.6 0.5mol/L potassium hydroxide ethanol solution; weighed 2.8g potassium hydroxide, with 100mL 95% ethanol dissolved in plastic bottles, room temperature Sealed to save. 4.7 octacosanol, triacontanol standards. purity ≥ 98%. 4.8 octacosanol, triacontol standard stock solution. were weighed 20mg octacosanol, triacontanol standard, accurate to 0.1mg, Into the 100mL volumetric flask, add trichloromethane ultrasonic dissolved after volume. Sealed at room temperature. 4.9 octacosanol, triacontol standard working solution. accurately absorb the standard stock solution 0.50mL, 1.00mL, 2.50mL, 5.00mL, 10.00 mL in a 10 mL volumetric flask, formulated with trichloromethane at 10.0 mg/L, 20.0 mg/L, 50.0 mg/L, 100.0 mg/L, 200.0mg/L standard working solution. Sealed at room temperature.

5 equipment

5.1 Gas Chromatograph. equipped with a flame ionization detector (FID). 5.2 ultra-low temperature refrigerator. 5.3 high-speed grinding grinder. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 32947-2016_English be delivered?

Answer: Upon your order, we will start to translate GB/T 32947-2016_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 32947-2016_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 32947-2016_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.