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SN/T 4258-2015 English PDF

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US$1019.00 · In stock
Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 4258-2015: Determination of water-soluble vitamins in foods for export
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4258-2015	1019	Add to Cart	7 days	Determination of water-soluble vitamins in foods for export	Valid

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Basic data

Standard ID: SN/T 4258-2015 (SN/T4258-2015)
Description (Translated English): Determination of water-soluble vitamins in foods for export
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 44,477
Date of Issue: 2015-05-26
Date of Implementation: 2016-01-01
Quoted Standard: GB/T 6682
Regulation (derived from): State Quality-Inspection-accreditation [2015] No.224
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the vitamins in food by liquid chromatography - mass spectrometry method HPLC/MS method for the determination of vitamin V. This standard applies to fruit juice, milk powder, milk drinks, rice, biscuits and jelly vitamin B measurements and confirmed; for the determination of fruit juice, milk powder, milk drinks, rice, puree and jelly of vitamin V.

SN/T 4258-2015: Determination of water-soluble vitamins in foods for export

---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 water-soluble vitamins in food exports) People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of water-soluble vitamins in food exports Issued on. 2015-05-26 2016-01-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine 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. Distribution of this document Institutions do not assume the responsibility to identify these patents. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Exit Inspection and Quarantine of Hebei, People's Republic of China Shanghai Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard. Yilian Feng, Duan eternal life, Wang Jing, Guo Chunhai, Mayu Song, Song, Song, Song Li. Determination of water-soluble vitamins in food exports

1 Scope

This standard specifies the food vitamin B1 (thiamine), B2 (riboflavin), B3 (niacin, niacinamide), B5 (pantothenic acid), B6 (pyridoxine, topiramate Pyridoxal, pyridoxamine), folic acid and B12 (cobalamin) liquid chromatography - mass spectrometry/mass spectrometry and vitamin Vc (L- ascorbic acid) and efficient Liquid chromatographic method. This standard applies to fruit juice, milk powder, milk drinks, rice, biscuits and jelly vitamin B1 (thiamine), B2 (riboflavin), B3 (nicotinic Acid, niacinamide), B5 (pantothenic acid), B6 (pyridoxine, pyridoxal, pyridoxamine), folic acid and B12 (cobalamin) Determination and confirmation; suitable for juice, Milk powder, milk drinks, rice, puree and jelly vitamin Vc (L- ascorbic acid) were measured.

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 The first part of the food in water-soluble vitamins B1 (thiamine), B2 (riboflavin), B3 (niacin, niacinamide), B5 (pantothenic acid), (pyridoxine, pyridoxal, pyridoxamine) Determination of B6 and folic acid Principle 3 Sample of vitamin B1 (thiamine), vitamin B2 (riboflavin), vitamin B3 (niacin, niacinamide), vitamin B5 (pantothenic acid), Victoria Vitamin B6 (pyridoxine, pyridoxal, pyridoxamine) and folic acid with a solution of hydrochloric acid, trichloroacetic acid solution or warm water (isoelectric point method) extraction and through the membrane, with Liquid chromatography - mass spectrometry/mass spectrometer, internal standard.

4 Reagents and materials

Unless otherwise specified, all reagents were of analytical grade water as a water GB/T 6682 regulations. 4.1 Methanol. HPLC grade. 4.2 formic acid. HPLC grade. Ammonium acetate 4.3. HPLC grade. 4.4 ammonia. 4.5 hydrochloric acid. 4.6 TCA. 4.7 sodium hydroxide. 4.8 BHT (butylated hydroxytoluene). purity not less than 99.3%, - 18 ℃ frozen storage. 4.9 0.1% formic acid solution (volume fraction). amount of 0.1mL of formic acid (4.2), water volume to 100mL. 4.10 10mmol/L ammonium acetate (pH = 6.3) solution. 0.39g ammonium acetate (4.3) dissolved in water to a 500 mL, mix with 0.1% formic acid Solution (4.9) was adjusted to pH = 6.3. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 4258-2015_English be delivered?

Answer: Upon your order, we will start to translate SN/T 4258-2015_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 7 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of SN/T 4258-2015_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 4258-2015_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.