GB 31604.51-2021 Translated English of Chinese Standard (GB31604.51-2021): National food safety standard - Food-contact materials and articles - Determination of migration of 1,4-butanediol
www.ChineseStandard.net, 3 sept 2021 - 11 páginas
This standard specifies the method for determining the migration of 1,4-butanediol in food contact materials and products. This standard applies to the determination of migration of 1,4-butanediol, in plastics, coatings, food contact materials and products, which use adhesives and inks.
Instrument and equipment
Expression of analysis results
Appendix A Chromatogram of 14butanediol standard solution
1,4-butanediol Figure 1,4-butanediol in food 1,4-butanediol standard solution 2.0 g accurate Accurately pipette 5.00 Accurately weigh 2.0 acetic acid solution acetone Add 50 µL alternative solvent 95 blank soaking solution blank solution butanediol Centrifuge chemical alternative solvent Chromatogram of 1,4-butanediol chromatographic column content of 1,4-butanediol detection limit ethanol solution expressed in mg/piece flame ionization detector food contact materials Gas chromatograph instrument reference conditions kilogram mg/kg kilograms kg Let it stand liter mg/L mass concentrations materials and products migration of 1,4-butanediol migration test milligrams per kilogram milligrams per liter mL volumetric flask mL/min oily food simulant pipette 0.20 mL quantification is 1.0 Reagents result shall retain sealing products Shake simulant and chemical simulant olive oil six 10 mL solution 5 mg/kg specific migration specimen soaking solution standard curve standard intermediate solution standard substance Standard working solution stock solution 3.4.1 test solution volume fraction volume or mass volume reach µm filter membrane