Path:
Home >
SN/T >
Page83 > SN/T 3385-2012
Price & Delivery
US$209.00 · In stock · Download in 9 secondsSN/T 3385-2012: Food contact materials. Polymer. Determination of acetaldehyde in polyethylene terephthalate (PET) resin and article-Headspace gas chromatography
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See
step-by-step procedureStatus: Valid
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| SN/T 3385-2012 | English | 209 |
Add to Cart
|
3 days [Need to translate]
|
Food contact materials. Polymer. Determination of acetaldehyde in polyethylene terephthalate (PET) resin and article-Headspace gas chromatography
|
Click to Preview a similar PDF
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 | 8,821 |
| 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 |
Similar standards
SN/T 5268|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.
...
