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GB/T 36929-2018 English PDF

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US$179.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 36929-2018: Leather and fur -- Chemical tests -- Determination of perfluorooctane sulphonates (PFOS) and perfluorooctanoic acid (PFOA) content
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 36929-2018	179	Add to Cart	3 days	Leather and fur -- Chemical tests -- Determination of perfluorooctane sulphonates (PFOS) and perfluorooctanoic acid (PFOA) content	Valid

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Basic data

Standard ID: GB/T 36929-2018 (GB/T36929-2018)
Description (Translated English): Leather and fur -- Chemical tests -- Determination of perfluorooctane sulphonates (PFOS) and perfluorooctanoic acid (PFOA) content
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y46
Classification of International Standard: 50.140.30
Word Count Estimation: 9,950
Date of Issue: 2018-12-28
Date of Implementation: 2019-07-01
Quoted Standard: GB/T 6682; QB/T 1267; QB/T 1272; QB/T 2706; QB/T 2716
Regulation (derived from): National Standard Announcement No. 17 of 2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the method for the determination of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) in leather and fur. This standard applies to all kinds of leather, Fur and its products.

GB/T 36929-2018: Leather and fur -- Chemical tests -- Determination of perfluorooctane sulphonates (PFOS) and perfluorooctanoic acid (PFOA) content

---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.
Leather and fur--Chemical tests--Determination of perfluorooctane sulphonates(PFOS) and perfluorooctanoic acid(PFOA) content ICS 50.140.30 Y46 National Standards of People's Republic of China Leather and fur chemical test Perfluorooctanesulfonyl compound (PFOS) and Determination of perfluorooctanoic acid (PFOA) Acid(PFOA)content Published on.2018-12-28 2019-07-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Light Industry Association. This standard is under the jurisdiction of the National Leather Industry Standardization Technical Committee (SAC/TC252). This standard was drafted. Zhejiang Fangyuan Testing Group Co., Ltd., Zhejiang Mingxin Xuteng Leather Co., Ltd., Zhejiang Tongtianxing Group Co., Ltd., Murong Group Co., Ltd., National Leather Quality Supervision and Inspection Center (Zhejiang), Fujian Entry-Exit Inspection and Quarantine Bureau, China Leather Leather and Footwear Industry Research Institute. The main drafters of this standard. Huang Xinxia, Shen Yun, Zhuang Junxin, Lan Li, Xu Shouchun, Ma Hewei, Chen Xuecan, Zhao Liguo, Bu Qiaoqiao. Leather and fur chemical test Perfluorooctanesulfonyl compound (PFOS) and Determination of perfluorooctanoic acid (PFOA) Caution - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security questions. question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set by the relevant national regulations.

1 Scope

This standard specifies the perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) extractable from leather and fur. Liquid chromatography-tandem mass spectrometry. This standard applies to all kinds of leather, fur and their products.

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 edition (including all amendments) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods QB/T 1267 Fur chemical, physical and mechanical, color fastness test sampling site QB/T 1272 preparation of fur chemical test samples QB/T 2706 leather chemical, physical, mechanical and color fastness test sampling site QB/T 2716 Preparation of leather chemical test samples

3 Principle

Extraction of perfluorooctanesulfonyl compound (PFOS) and perfluorooctanoic acid from a sample using a Soxhlet extraction apparatus using methanol as a solvent Substance (PFOA), the extract is purified by solid phase extraction column and determined by liquid chromatography-tandem mass spectrometry (LC-MS/MS) with selected ions. Confirm that the external standard method is quantitative.

4 reagents and materials

4.1 General Provisions. The reagents used in this standard refer to analytically pure reagents when no other requirements are indicated. Used in this standard Water, when the specifications are not stated, shall comply with the provisions of Class I water in GB/T 6682. 4.2 Acetonitrile, chromatographically pure. 4.3 Methanol, chromatographically pure. 4.4 Ammonium acetate, excellent grade. 4.5 Ammonium acetate solution (5mmol/L). Weigh 0.385g of ammonium acetate, dissolve it with ultrapure water, and dilute to 1000mL, shake well, use before use Filter through a 0.22 μm filter. 4.6 Acetonitrile-ammonium acetate mixed solution. Mix an appropriate amount of acetonitrile (see 4.2) and ammonium acetate solution (see 4.5) at a volume ratio of 2.3. 4.7 1% Ammonia-Methanol Solution. Take 1 mL of ammonia water, add to a 100 mL volumetric flask, dilute to the mark with methanol, and shake well. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 36929-2018_English be delivered?

Answer: Upon your order, we will start to translate GB/T 36929-2018_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 36929-2018_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 36929-2018_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.