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SN/T 1504.2-2017: Plastics used for food container and package. Part 2-Determination of antioxidants and erucamide slip additives in polyethylene. Liquid chromatography
Status: Valid SN/T 1504.2: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1504.2-2017 | English | 139 |
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Plastics used for food container and package. Part 2-Determination of antioxidants and erucamide slip additives in polyethylene. Liquid chromatography
| Valid |
SN/T 1504.2-2017
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| SN/T 1504.2-2005 | English | 319 |
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Plastics used for food container and package. Part 2: Determination of phenolic antioxidants and erucamide slip additives in linear low-density polyethylene. Liquid chromatography
| Obsolete |
SN/T 1504.2-2005
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PDF similar to SN/T 1504.2-2017
Basic data | Standard ID | SN/T 1504.2-2017 (SN/T1504.2-2017) | | Description (Translated English) | Plastics used for food container and package. Part 2-Determination of antioxidants and erucamide slip additives in polyethylene. Liquid chromatography | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | A82 | | Word Count Estimation | 6,637 | | Date of Issue | 2017-07-21 | | Date of Implementation | 2018-03-01 | | Older Standard (superseded by this standard) | SN/T 1504.2-2005 | | Regulation (derived from) | State-Quality-Inspection-Accreditation (2017) 337 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the determination method of liquid chromatography for antioxidants and erucamide slip agents in food containers and polyethylene for packaging. This section applies to the determination of antioxidants BHT, BHEB, Isonox129, Irganox1010, Irganox1076 and slip agent erucamide in food containers and polyethylene for packaging. | SN/T 1504.2-2005: Plastics used for food container and package. Part 2: Determination of phenolic antioxidants and erucamide slip additives in linear low-density polyethylene. Liquid chromatography
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Plastics used for food container and package. Part 2. Determination of phenolic antioxidants and erucamide slip additives in linear low-density polyethylene.Liquid chromatography
Book of the People's Republic of China Entry and Exit Inspection and Quarantine
Food containers, plastic materials for packaging - Part 2.
Phenolic antioxidants and erucyl groups in linear low density polyethylene
Determination of amine slip agents - Liquid chromatography
Released on.2005-02-17
2005-07-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
SN/T 1504 "Food Containers, Plastic Materials for Packaging" is divided into five parts.
--- Part 1. Determination of phenolic antioxidants and erucamide slip agents in polypropylene homopolymers.
--- Part 2. Determination of phenolic antioxidants and succinic acid slip agents in linear low-density polyethylene - Liquid chromatography;
---Part 3. Determination of butyl-hydroxytoluene (BHT) in ethylene polymers and ethylene-vinyl acetate (EVA) copolymers
Phase chromatography
---Part 4. Determination of phenolic antioxidants in high-density polyethylene - Liquid chromatography;
---Part 5. Determination of content of impurity elements in polyolefins by X-ray fluorescence spectrometry.
This part is the second part of the SN/T 1504.
This part of the amendment uses the contents of ASTM D5815-1996, the title is revised to "food containers, plastic materials for packaging linear
Determination of phenolic antioxidants and erucamide slip agents in low density polyethylene by liquid chromatography.
Appendix A of this section is an informative annex.
This part is proposed and managed by the National Certification and Accreditation Administration.
This part is drafted by the Tianjin Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this section. Liu Shaocong, Liu Jun, Zhang Lai, Lu Gang, Ma Jun.
This section is the first industry standard for entry-exit inspection and quarantine.
Food containers, plastic materials for packaging - Part 2.
Phenolic antioxidants and erucyl groups in linear low density polyethylene
Determination of amine slip agents - Liquid chromatography
1 Scope
This part of SN/T 1504 stipulates phenolic antioxidants and mustardamide in linear low-density polyethylene for import and export food containers and packaging.
Method for determining the amount of slip agent.
This section applies to the separation and determination of phenolic antioxidants and erucamide slip agents in food containers and linear low density polyethylene for packaging.
2 Method summary
A sample of linear low density polyethylene (LLDPE) was ground to a particle size of 20 mesh and then extracted with isobutanol or isopropanol under reflux. Extract
Determined by liquid chromatograph internal standard method.
Note. For low crystallinity LLDPE (density less than or equal to 0.925), it is recommended to use isopropanol as the extractant; for high crystallinity LLDPE (containing
Irganox 1010) recommends the use of isobutanol as an extractant.
3 reagents and solutions
3.1 Tinuvin-P. 2(2'hydroxy-5'-methylphenyl)benzothiazole.
3.2 Isobutanol. liquid chromatography grade, spectrally pure or chromatographically pure reagent.
3.3 Isopropanol. liquid chromatography grade, spectrally pure or chromatographically pure reagent.
3.4 T-P internal standard solution. Tinuvin-P internal standard is added to isobutanol (or isopropanol) to prepare a mass concentration of 51.8mg/L.
Solution.
3.5 Water. Degassing with high purity helium or vacuum filtration.
3.6 Acetonitrile. liquid chromatography grade, spectrally pure or chromatographically pure reagent.
4 instruments
4.1 Liquid Chromatograph. equipped with a UV detector, column heating system and gradient elution unit with a 10 μL sample injection valve.
4.2 Wiley Mill. A 20-mesh screen and water cooling system are installed to prevent thermal decomposition of the antioxidant.
4.3 Reflow extraction device. by condenser tube (20/40 glass grinding port), 125mL flat-bottomed flask (with 24/40 glass grinding port) and with magnetic force
Agitated heating plate consists of. The sample extraction device is shown in Figure A. 1.
4.4 Filtration unit. Teflon filter disc for non-aqueous solutions (pore size 0.22 μm) with a 5 mL syringe.
4.5 Analytical balance. accurate to ±0.0001g.
5 liquid chromatography conditions
5.1 Column. reversed phase C18, 5μm, 150mm × 4.6mm.
5.2 Detector. The UV detector wavelength is set at.200 nm and the absorbance measurement is set to 0.1A.
5.3 Gradient elution procedure.
a) Initial mobile phase conditions. acetonitrile-water (50+50).
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