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 [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]www.ChineseStandard.net, 2021 M09 3 - 11 pages 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. |
Contents
| 3 | |
Instrument and equipment | 5 |
Expression of analysis results | 7 |
Precision | 9 |
Appendix A Chromatogram of 14butanediol standard solution | 10 |
Common terms and phrases
1,4-butanediol in food 1,4-butanediol standard solution 2.0 g accurate Accurately pipette 5.00 acetic acid solution acetone Add 50 µL alternative solvent 95 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 food simulant olive Gas chromatograph instrument reference conditions kilogram mg/kg kilograms kg least 2 significant Let it stand liter mg/L mass concentrations materials and products methanol to accurately 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 six 10 mL specific migration specimen soaking solution square decimeters dm2 standard curve standard intermediate solution standard substance Standard working solution stock solution 3.4.1 test solution Treatment of soaking volume fraction volume or mass volume reach µm filter membrane