GB 31604.34-2016
National food safety standard Determination of lead in food contact materials and products and determination of migration (English Version)
- Standard No.
- GB 31604.34-2016
- Language
- Chinese, Available in English version
- Release Date
- 2017
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB 31604.34-2016
- Replace
- GB/T 5009.62-2003 GB/T 5009.63-2003 GB/T 5009.72-2003 GB/T 5009.78-2003 GB/T 5009.81-2003 GB/T 3534-2002 GB 8058-2003 GB/T 21170-2007 SN/T 2597-2010 SN/T 2829-2011 SN/T 2886-2011 SN/T 2594-2010
- Scope
- This standard specifies the lead migration amount of food contact materials and products after immersion in food simulants and the determination of lead in paper products and cork stoppers by graphite furnace atomic absorption spectrometry, inductively coupled plasma mass spectrometry, inductively coupled plasma emission spectrometry and flame atomic absorption spectrometry. This standard is applicable to the determination of lead migration amount in food contact materials and products and lead in paper products and cork stoppers.
- Introduction
Detection Technology Background and Standard Evolution
This standard integrates and revises 11 previous detection specifications, and the main technical improvements are reflected in:
Original standard Improvement points New technical parameters GB/T 5009.62-2003, etc. Newly added inductively coupled plasma technology group Detection limit reduced by 80%
Analysis of core detection methods
Graphite furnace atomic absorption spectrometry
Important parameters of detection steps:
- Ashing temperature: 500℃ / time: 6-8h
- Key reagents: Palladium nitrate-ammonium dihydrogen phosphate mixed solution
- Linear range: 0-40μg/L (standard curve)
Special comparative analysis
Detection method Scope of application Detection limit (μg/L) RSD% Graphite furnace AAS Paper/cork 0.05 20% Flame AAS Metalware 70 10% Practical Application Example
When testing ceramic tableware in the laboratory, after completing the migration test using glycerol simulant as specified in GB 5009.156, the acidity was adjusted according to Clause 12.1 of this standard, and the measured lead migration amount was 1.25mg/kg, which meets the requirements of QS production license.
GB 31604.34-2016 history
- 2016 GB 31604.24-2016 National food safety standard Determination of cadmium migration in food contact materials and products
- 2007 GB/T 21170-2007 Glass hollowware-Test method for lead and cadmium release
- 2003 GB 8058-2003 Standard permissible limits and testing method for release of lead or cadmium from ceramic cookware
- 2002 GB/T 3534-2002 Standard testing methods for lead and cadmium release from domestic ceramic
- 1996 GB/T 5009.72-1996 Analytical method for hygienic standard of aluminum tableware container
- 0000年 GB/T 3534-1990
- 0000年 GB/T 11681-1989
- 1987 GB 8058-1987 Permissible limits and detection methods for lead and cadmium dissolution in ceramic cookers
- 1985 GB 3562-1985 Analytical method for hygienic standard of aluminum tableware container
GB 31604.34-2016 has been changed from GB/T 5009.62-2003 Method for analysis of hygienic standard of ceramics for food containers.
GB 31604.34-2016 has been changed from GB/T 5009.63-2003 Method for analysis of hygienic standard of enamel for food containers.
GB 31604.34-2016 has been changed from GB/T 5009.72-2003 Method for analysis of hygienic standard of aluminum-wares for food use.
GB 31604.34-2016 has been changed from GB/T 5009.78-2003 Method for analysis of hygienic standard of papers for food packaging.
GB 31604.34-2016 has been changed from GB/T 5009.81-2003 Method for analysis of hygienic standard of stainless steel food containers and table wares.
GB 31604.34-2016 has been changed from GB/T 3534-2002 Standard testing methods for lead and cadmium release from domestic ceramic.
GB 31604.34-2016 has been changed from GB 8058-2003 Standard permissible limits and testing method for release of lead or cadmium from ceramic cookware.
GB 31604.34-2016 has been changed from GB/T 21170-2007 Glass hollowware-Test method for lead and cadmium release.
GB 31604.34-2016 has been changed from SN/T 2597-2010 Determination of lead,cadmium,chromium,arsenic,antimony,germanium migration quantity in polymer for food contact materials.Inductively coupled plasma atomic emission spectometry method.
GB 31604.34-2016 has been changed from SN/T 2829-2011 Determination of heavy metal content in metal materials and food simulants of export food contact materials Inductively coupled plasma emission spectrometry.
GB 31604.34-2016 has been changed from SN/T 2886-2011 Flame atomic absorption spectrometry for the dissolution determination of lead and cadmium in glass container simulants of export food contact materials.
GB 31604.34-2016 has been changed from SN/T 2594-2010 Food contact materials.Determination of lead,cadmium,chromium,and arsenic in cork stoppers by inductively coupled plasma mass spectrometry.