1 Scope
This standard specifies methods for determining the extract in resins of food contact materials and their products.
This standard is applicable to the determination of extract in polyethylene, polystyrene, polypropylene, polycarbonate and polyethylene terephthalate resins of food contact materials and their products.
2 Theory
Extract the specimen with extract, evaporate the extract to dryness, dry the residue, and determine the content of extract in the specimen by gravimetric method.
3 Reagents and Materials (Extract)
Unless otherwise specified, analytically pure reagents and Grade 2 water (specified in GB/T 6682) are adopted for the purposes of this method.
Foreword i
1 Scope
2 Theory
3 Reagents and Materials (Extract)
4 Apparatuses
5 Analytical Procedures
6 Expression of Analysis Results
7 Precision
Standard
GB 31604.5-2016 National Food Safety Standard - Food Contact Materials and Articles - Products - Determination of Extract in Resins (English Version)
Standard No.
GB 31604.5-2016
Status
valid
Language
English
File Format
PDF
Word Count
2000 words
Price(USD)
50.0
Implemented on
2016-9-20
Delivery
via email in 1 business day
Detail of GB 31604.5-2016
Standard No.
GB 31604.5-2016
English Name
National Food Safety Standard - Food Contact Materials and Articles - Products - Determination of Extract in Resins
1 Scope
This standard specifies methods for determining the extract in resins of food contact materials and their products.
This standard is applicable to the determination of extract in polyethylene, polystyrene, polypropylene, polycarbonate and polyethylene terephthalate resins of food contact materials and their products.
2 Theory
Extract the specimen with extract, evaporate the extract to dryness, dry the residue, and determine the content of extract in the specimen by gravimetric method.
3 Reagents and Materials (Extract)
Unless otherwise specified, analytically pure reagents and Grade 2 water (specified in GB/T 6682) are adopted for the purposes of this method.
Contents of GB 31604.5-2016
Foreword i
1 Scope
2 Theory
3 Reagents and Materials (Extract)
4 Apparatuses
5 Analytical Procedures
6 Expression of Analysis Results
7 Precision