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SN/T 4675.2-2016 English PDF

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US$139.00 · In stock
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SN/T 4675.2-2016: Determination of 2, 3-butanediol in wine for export--Gas chromatographic method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4675.2-2016	139	Add to Cart	3 days	Determination of 2, 3-butanediol in wine for export--Gas chromatographic method	Valid

Similar standards

GB/T 10343 GB/T 394.1 GB 4927 SN/T 4675.11 SN/T 4675.1 SN/T 4675.10

Basic data

Standard ID: SN/T 4675.2-2016 (SN/T4675.2-2016)
Description (Translated English): Determination of 2, 3-butanediol in wine for export--Gas chromatographic method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X62
Word Count Estimation: 6,699
Date of Issue: 2016-12-12
Date of Implementation: 2017-07-01
Regulation (derived from): State-Quality-Inspection-Accredidation (2016) No.590
Issuing agency(ies): General Administration of Customs

SN/T 4675.2-2016: Determination of 2, 3-butanediol in wine for export--Gas chromatographic 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 2, 3-butanediol in wine for export--Gas chromatographic method China's entry-exit inspection and quarantine industry standards Determination of 2,3-butanediol in exported wine Gas chromatography Published on.2016-12-12 2017-07-01 Implementation China The State Administration of Quality Supervision, Inspection and Quarantine issued Inspection and Quarantine of the People's Republic of China Industry Standard Determination of 2,3-butanediol in exported wine Gas chromatography China Standard Press Publishing December.2017 first edition

Foreword

SN/T 4675 "Method for Analysis of Export Wine Quality" is divided into 30 sections. ---SN/T 4675.1 Determination of glycerol in wine exports Enzymatic; ---SN/T 4675.2 Determination of 2,3-butanediol in exported wines by gas chromatography; ---SN/T 4675.3 Determination of Stable Carbon Isotope Ratio of Ethanol in Export Wines; ---SN/T 4675.4 Determination of Lactic Acid in Export Wines Enzymatic; ---SN/T 4675.5 Determination of organic acids in exported wines by ion chromatography; ---SN/T 4675.6 Determination of glucose, fructose and sucrose in exported wines; ---SN/T 4675.7 Determination of acetaldehyde in exported wines by gas chromatography-mass spectrometry; ---SN/T 4675.8 Determination of 5-hydroxymethylfurfural in wines by liquid chromatography; ---SN/T 4675.9 Determination of diethylene glycol in exported wines by gas chromatography-mass spectrometry; ---SN/T 4675.10 Determination of ochratoxin A in wines for liquid chromatography-mass spectrometry/mass spectrometry; ---SN/T 4675.11 Determination of seven anthocyanins in wines exported by ultra-high performance liquid chromatography; ---SN/T 4675.12 Determination of Lysozyme in Export Wines by Liquid Chromatography; ---SN/T 4675.13 Determination of residual 2,4,6-trichlorotoluene ether in exported wines; ---SN/T 4675.14 Determination of natamycin in wines for export - Liquid chromatography-mass spectrometry/mass spectrometry; ---SN/T 4675.15 Determination of salicylic acid, dehydroacetic acid and p-chlorobenzoic acid in wines by liquid chromatography; ---SN/T 4675.16 Determination of fumaric acid in wine exports by liquid chromatography-mass spectrometry/mass spectrometry; ---SN/T 4675.17 Determination of butyltin content in exported wines by gas chromatography-mass spectrometry/mass spectrometry; ---SN/T 4675.18 Determination of dithiocarbamate residues in exported wines. Headspace gas chromatography; ---SN/T 4675.19 Determination of sodium, magnesium, potassium, calcium, chromium, manganese, iron, copper, zinc, arsenic, selenium, silver, cadmium, and lead in wine exports; ---SN/T 4675.20 Determination of rare earth elements in wines exported by inductively coupled plasma mass spectrometry; ---SN/T 4675.21 Determination of soluble inorganic salts in exported wines by ion chromatography; ---SN/T 4675.22 Determination of total sulfur dioxide in wines by colorimetric method; ---SN/T 4675.23 Determination of ammonia nitrogen in wine and grape juice exported by continuous flow analyzer method; ---SN/T 4675.24 Determination of the export of the Folin-Shaugha index of the wine by spectrophotometry; ---SN/T 4675.25 Determination of color of exported wines CIE1976 (L*a*b*) color space method; ---SN/T 4675.26 Determination of export turbidity scattered light method; ---SN/T 4675.27 Determination of alkaline ash content of exported wines; ---SN/T 4675.28 Export of wine bacteria, mold and yeast count; ---SN/T 4675.29 Real-time fluorescent PCR assay for wine yeast extraction in wine exports; ---SN/T 4675.30 Bayer splice yeast assay for real-time fluorescence PCR in exported wines. This section is Part 2 of SN/T 4675. This section was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The issuing agency of this document does not assume responsibility for identifying these patents. This part is proposed and managed by the National Certification and Accreditation Regulatory Commission. This section was drafted by. Guangdong Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China and Shandong Entry-Exit Inspection and Quarantine Bureau, People's Republic of China Entry-Exit Inspection and Quarantine Bureau. The main drafters of this section. Shao Shiping, Yan Xinglin, Liu Qing, Li Shuang, Li Nan, Li Zhiyong, Cui Shuhua, Cheng Gang, Li Rong, Yan Ping. Determination of 2,3-butanediol in exported wine Gas chromatography

1 Scope

This part of SN/T 4675 specifies the determination of 2,3-butanediol in wine by gas chromatography. This section applies to the determination of 2,3-butanediol content in wine.

2 Normative references

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

3 Method summary

The sample was purified on a graphitized carbon black column, diluted with ethanol, measured by a gas chromatography-hydrogen flame ionization detector, and quantified by an external standard method.

4 Reagents and materials

Unless otherwise specified, all reagents are of analytical grade and water is a grade of water specified in GB/T 6682. 4.1 Absolute ethanol (C2H6O). Chromatographically pure. 4.2 Ethanol solution (9 1, volume ratio). Accurately measure 450 mL of ethanol (4.1), add water to 50 mL, and mix. 4.3 Reference material. meso-2,3-butanediol standard, C4H10O2, CAS number. 5341-95-7, purity greater than 99%. 4.4 Standard stock solution (10.0 mg/mL). Accurately weigh the appropriate amount of standard material (4.3), and make a standard stock of 10.0 mg/mL with water. Liquid preparation. 4.5 Standard Intermediate Solution (100.0mg/L). Accurately take 1.0mL standard stock solution (4.4), place in 100mL volumetric flask, add ethanol Dilute the solution (4.2) to the mark. A standard intermediate solution with a concentration of 100.0 mg/L was prepared. 4.6 standard working solution. accurately measure the standard intermediate solution (4.5) 0.1mL, 0.5mL, 1.0mL, 2.0mL, 3.0mL, 5.0mL In a 10 mL volumetric flask, dilute to the mark with an ethanol solution (4.2), and prepare 1.0 mg/L, 5.0 mg/L, 10.0 mg/L, and 20.0 mg/L, respectively. 30.0 mg/L, 50.0 mg/L standard working solution. 4.7 Graphitized carbon black column. 250 mg/3 mL.

5 Instruments and Equipment

5.1 Gas chromatograph equipped with a hydrogen flame ionization detector. 5.2 Analytical balance. The amount of sense is 0.1mg. 5.3 Solid phase extraction device. 5.4 Pipette. 1.0 mL. 5.5 Microporous membrane. 0.22 μm, organic system. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 4675.2-2016_English be delivered?

Answer: Upon your order, we will start to translate SN/T 4675.2-2016_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 SN/T 4675.2-2016_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 4675.2-2016_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.