GB 31604.14-2016 Translated English of Chinese Standard. GB31604.14-2016: National food safety standard - Food contact materials and articles - Determination of migration of 1-octene and tetrahydrofuranhttps://www.chinesestandard.net, 2018 M04 23 - 16 pages This Standard specifies the method for the determination of migration of 1-octene and tetrahydrofuran in food contact materials and articles. This Standard applies to the determination of migration of 1-octene and tetrahydrofuran in food contact materials and articles. |
Contents
| 3 | |
Scope | 4 |
Apparatus | 7 |
Expression of analysis results | 10 |
Analytical procedures | 11 |
Expression of analysis results | 13 |
Annex A Preparation tables of standard working solutions | 14 |
Annex B Standard substance chromatograms of the gas chromatographic method and the gas chromatographicmass spectrometric method | 15 |
Common terms and phrases
1-octene and tetrahydrofuran 50 mL volumetric accurate to 0.000 acidic and alcoholic add to scale alcoholic food simulant aluminium cover arithmetic mean butyl rubber Calculate the concentration DMAC to add flame ionization detector flask and weigh food contact materials food simulant test gas chromatographic gas chromatographic-mass spectrometric Gas chromatography gas chromatography-mass spectrometry headspace bottle immediately seal insulator and aluminium internal standard intermediate internal standard stock isooctane internal standard materials and articles measure 45 mL mg/mL micro-syringe to add migration of 1-octene migration test mL of water-based mL volumetric flask octene oil-based THF standard olive oil medium once again accurate Pipettes qualitative ions quantitative ion m/z respectively 6.0 mg/L seal using insulator simulant test solutions simulants are respectively specified in 3.4.7 standard intermediate solution standard stock solution standard working solutions stopper accurate storage conditions Table A.1 tetrahydrofuran in food tetrahydrofuran in water-based THF standard intermediate THP internal standard transfer 1.0 mL weigh once