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SN/T 3350-2012 English PDF

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US$339.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 3350-2012: Determination of free phenol in phenolic resin adhesives used in building for import and export
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 3350-2012	339	Add to Cart	3 days	Determination of free phenol in phenolic resin adhesives used in building for import and export	Valid

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SN/T 5268

Basic data

Standard ID: SN/T 3350-2012 (SN/T3350-2012)
Description (Translated English): Determination of free phenol in phenolic resin adhesives used in building for import and export
Sector / Industry: Commodity Inspection Standard (Recommended)
Word Count Estimation: 13,135
Quoted Standard: GB/T 6682
Regulation (derived from): National Quality Inspection (2012) 777; industry standard filing Notice 2013 No. 4 (No. 160 overall)
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the import and export of construction with phenolic resin adhesive determination of free phenol of the three methods, including the first law GC mass spectrometry (GC-MS), the second high-performance liquid chromatography method (H

SN/T 3350-2012: Determination of free phenol in phenolic resin adhesives used in building for import and 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 free phenol in phenolic resin adhesives used in building for import and export People's Republic of China Entry-Exit Inspection and Quarantine Standards Importers construction phenolic resin adhesive Determination of free phenol Issued on. 2012-12-12 2013-07-01 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. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard is the first law drafted by. People's Republic of China, Xiamen CIQ. This standard is the first major law drafter. Lai Ying, Lin Rui, Li Rong specifically, Lin Haixia, Ge Xiuxiu, Cai Yanping, Lin Weijing. This standard was drafted by the second law. People's Republic of China, Xiamen CIQ. The main drafters of this Standard Method II. Rui Lin, Lai Ying, Lin Haixia, Ge Xiuxiu, Huanglong, Lin Weijing, Cai Yanping. This standard was drafted by the third law. People's Republic of China, Shenzhen CIQ. The main drafters of this standard third law. Liu Dong, Wu Jingwu, LIU Zhihong, Turnbull, Huang Qiang. Importers construction phenolic resin adhesive Determination of free phenol

1 Scope

This standard specifies the construction and export three measurement methods for phenolic resin adhesive free phenol, including a first gas chromatography - mass spectrometry Method (GC-MS), high performance liquid chromatography second method (HPLC) and the third method ultraviolet spectrophotometry. Wherein the gas chromatography - mass spectrometry for the arbitration law. This standard applies to the determination of phenol content and export building with phenolic resin adhesive free.

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 3 The first gas chromatography - mass spectrometry (GC-MS) 3.1 Principle After the sample with methanol ultrasonic extraction, the extract was filtered, and gas chromatography - mass spectrometry and validation, external standard. 3.2 Reagents and materials Unless otherwise specified, the reagents were of analytical grade water as a water line with GB/T 6682 regulations. 3.2.1 Methanol. chromatographically pure. 3.2.2 Phenol (CAS No. 108-95-2). purity ≥98%. 3.2.3 Standard stock solution (1000mg/L). Weigh accurately phenol (3.2.2) 0.10g (accurate to 0.0001g), placed in 100mL capacity Flask, diluted with methanol (3.2.1) to the mark, shake well. Standard stock solution dark storage at 0 ℃ ~ 4 ℃ conditions, should be heated before use To 25 ℃ ± 5 ℃. 3.2.4 standard solution. Pipette appropriate amount of standard stock solution (3.2.3), diluted to standard working solution with a suitable concentration of methanol (3.2.1). 3.2.5 The organic phase filter. 0.22μm. 3.3 instruments and equipment 3.3.1 Gas chromatography - mass spectrometry. with electron impact ionization (EI). 3.3.2 vortex mixer. 3.3.3 ultrasonic cleaner (power ≥220W). 3.3.4 centrifuge. speed of not less than 4000r/min. 3.3.5 Electronic balance. a sense of the amount of 0.1mg. 3.4 Analysis Steps 3.4.1 Extraction Said sample after mixing learn about 0.50g (accurate to 0.0001g), placed in 10mL tube with a stopper colorimetric, diluted with methanol (3.2.1) to ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 3350-2012_English be delivered?

Answer: Upon your order, we will start to translate SN/T 3350-2012_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 3350-2012_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 3350-2012_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.