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SN/T 3385-2012 English PDF

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US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 3385-2012: Food contact materials. Polymer. Determination of acetaldehyde in polyethylene terephthalate (PET) resin and article-Headspace gas chromatography
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 3385-2012	209	Add to Cart	3 days	Food contact materials. Polymer. Determination of acetaldehyde in polyethylene terephthalate (PET) resin and article-Headspace gas chromatography	Valid

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SN/T 5268

Basic data

Standard ID: SN/T 3385-2012 (SN/T3385-2012)
Description (Translated English): Food contact materials. Polymer. Determination of acetaldehyde in polyethylene terephthalate (PET) resin and article-Headspace gas chromatography
Sector / Industry: Commodity Inspection Standard (Recommended)
Word Count Estimation: 8,889
Date of Issue: 12/12/2012
Date of Implementation: 7/1/2013
Regulation (derived from): State-Quality-Inspection-accreditation (2012) 777
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the polyethylene terephthalate (PET) resin and its products acetaldehyde headspace chromatographic method. This standard applies to the determination of acetaldehyde in the resin and its products terephthalate (PET), polyethylene t

SN/T 3385-2012: Food contact materials. Polymer. Determination of acetaldehyde in polyethylene terephthalate (PET) resin and article-Headspace 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.
Food contact materials.Polymer.Determination of acetaldehyde in polyethylene terephthalate (PET) resin and article-Headspace gas chromatography People's Republic of China Entry-Exit Inspection and Quarantine Standards Food contact materials - Polymer polyethylene terephthalate Polyethylene terephthalate (PET) resin and products Determination of acetaldehyde headspace gas chromatography terephthalate (PET) resinandarticle-Headspacegaschromatography 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. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of 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 Jiangsu Entry-Exit Inspection and Quarantine Bureau, Changzhou import and export of industrial and consumer safety testing center. The main drafters of this standard. Zhou Zhirong, Wu Jing, Wang Hongsong, Zhang Min, Huang Chenyang. Food contact materials - Polymer polyethylene terephthalate Polyethylene terephthalate (PET) resin and products Determination of acetaldehyde headspace gas chromatography

1 Scope

This standard specifies the polyethylene terephthalate (PET) resin and its products acetaldehyde headspace chromatographic method. This standard applies to the determination of acetaldehyde in the resin and its products terephthalate (PET) polyethylene terephthalate. PET resin and its products acetaldehyde measured lower limit 0.3μg/g. Principle 2 In a closed container and a certain temperature, PET resin and its products in the residual acetaldehyde between the gas phase (headspace) and matrix (solid phase) exists Allocation balance. After equilibrium is reached, it will be introduced into the gas phase portion separated by gas chromatography, detection by flame ionization detector, external standard method Quantified.

3 Materials and Reagents

3.1 acetaldehyde standard solution. 1000mg/L (acetonitrile as solvent, chromatographic grade purity). NOTE. The solution should be stored away from light, stored in a refrigerator is recommended -20 ℃ ~ -10 ℃ in a period of three months. 3.2 nitrogen purity ≥99.99%.

4 instruments and equipment

4.1 Gas chromatograph. equipped with a flame ionization detector. 4.2 automatic headspace sampler. 4.3 bottles. 20mL, cover with aluminum and silicon rubber gasket PTFE membrane. 4.4 micro syringe. 1μL. 4.5 Analysis of balance. a sense of the amount of 0.1mg. 4.6 mill, with a pore size sieve. 4.7 liquid nitrogen tank. Preparation 5 samples 5.1 The PET resin pellets or pre-cut into 2cm × 2cm PET article sufficiently massive and uniformly mixed as the test sample. Weigh About 10g test sample is placed in liquid nitrogen to cool for about 10min. Immediately after the sample was taken crushed with a pulverizer to a particle size of about 1mm ~ 5mm, grinding time is not more than 30s. 5.2 Weigh 1.0g (accurate to 0.1mg) samples were crushed. 20mL vial was purged with nitrogen, and then quickly said good test Sample vial into the sealed test. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 3385-2012_English be delivered?

Answer: Upon your order, we will start to translate SN/T 3385-2012_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 3385-2012_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 3385-2012_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.