GB 31604.2-2016 National Food Safety Standard - Food Contact Materials and Articles - Determination of Potassium Permanganate Consumption (English Version)
1 Scope
This standard specifies the determination method of potassium permanganate consumption in food contact materials and articles.
This standard is applicable to the determination of potassium permanganate consumption in food contact materials and articles.
2 Theory
Titrate the specimen soak solution with potassium permanganate standard solution under acidic condition, and calculate the potassium permanganate consumption in the specimen according to the volume of titration solution consumed by the specimen.
3 Reagents and Materials
Unless otherwise specified, all reactants adopted for this method are analytically pure and water is Grade 2 water as specified in GB/T 6682.
3.1 Reactants
3.1.1 Sulfuric acid (H2SO4).
3.1.2 Potassium permanganate (KMnO4).
3.2 Preparation of reagents
3.2.1 Sulfuric acid solution (1+2): pipet 100mL of sulfuric acid, pour it into 200mL of water carefully, and then mix the solution well.
3.2.2 0.04% potassium permanganate solution: weigh 0.4g of potassium permanganate, dissolve it in water to 1,000mL.
Foreword I
1 Scope
2 Theory
3 Reagents and Materials
4 Analytical Procedures
5 Expression of Analysis Results
6 Precision
Standard
GB 31604.2-2016 National Food Safety Standard - Food Contact Materials and Articles - Determination of Potassium Permanganate Consumption (English Version)
Standard No.
GB 31604.2-2016
Status
valid
Language
English
File Format
PDF
Word Count
2000 words
Price(USD)
60.0
Implemented on
2016-9-20
Delivery
via email in 1 business day
Detail of GB 31604.2-2016
Standard No.
GB 31604.2-2016
English Name
National Food Safety Standard - Food Contact Materials and Articles - Determination of Potassium Permanganate Consumption
1 Scope
This standard specifies the determination method of potassium permanganate consumption in food contact materials and articles.
This standard is applicable to the determination of potassium permanganate consumption in food contact materials and articles.
2 Theory
Titrate the specimen soak solution with potassium permanganate standard solution under acidic condition, and calculate the potassium permanganate consumption in the specimen according to the volume of titration solution consumed by the specimen.
3 Reagents and Materials
Unless otherwise specified, all reactants adopted for this method are analytically pure and water is Grade 2 water as specified in GB/T 6682.
3.1 Reactants
3.1.1 Sulfuric acid (H2SO4).
3.1.2 Potassium permanganate (KMnO4).
3.2 Preparation of reagents
3.2.1 Sulfuric acid solution (1+2): pipet 100mL of sulfuric acid, pour it into 200mL of water carefully, and then mix the solution well.
3.2.2 0.04% potassium permanganate solution: weigh 0.4g of potassium permanganate, dissolve it in water to 1,000mL.
Contents of GB 31604.2-2016
Foreword I
1 Scope
2 Theory
3 Reagents and Materials
4 Analytical Procedures
5 Expression of Analysis Results
6 Precision
