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GB 31604.6-2016National Food Safety Standard -- Food Contact Materials and Articles -- Determination of Ignition Residue in Resin (English PDF)

食品安全国家标准食品接触材料及制品树脂中灼烧残渣的测定

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Issued by

National Health and Family Planning Commission of PRC

Level / Type

National · Mandatory

Issue date

August 31, 2016

Implementation date

March 1, 2017

Scope

GB 31604.6-2016 is the English-translated version of 食品安全国家标准食品接触材料及制品树脂中灼烧残渣的测定.

GB 31604.6-2016 is the Chinese standard "National Food Safety Standard -- Food Contact Materials and Articles -- Determination of Ignition Residue in Resin". Its scope clause reads: This Standard specifies the determination of burning residues in the resin of food contact materials and products.

This Standard is applicable to the determination of burning residues in the polyethylene resin of food contact materials and products. Its clauses include principle; apparatus; analytical procedures.

It was issued by the National Health and Family Planning Commission of PRC on 2016-08-31 and took effect on 2017-03-01.

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Document preview — GB 31604.6-2016

National Standard of the People's Republic of China

Issued by: National Health and Family Planning Commission of PRC

Foreword...3
1 Scope...4
2 Principle...4
3 Apparatus...4
5 Expression of Analytical Results...5
6 Precision...5

1 Scope

This Standard specifies the determination of burning residues in the resin of food contact materials and products.

This Standard is applicable to the determination of burning residues in the polyethylene resin of food contact materials and products.

2 Principle

After carbonization, the specimen is calcinated at 800°C, then calculate the mass of residues.

3 Apparatus

3.1 Balance. sensibility of 0.1mg.

3.2 High-temperature oven. the maximum application temperature is >=900°C.

3.3 Dryer.

3.4 Crucible. quartz crucible or porcelain crucible.

4 Analytical Procedures

4.1 Sampling method

Operate as per GB 5009.156.

4.2 Specimen determination

Weigh 5g~10g (accurate to 0.1mg) of particle specimen; place it into the constant- weight crucible that has been burnt to 800°C±25°C; carefully carbonize to smoke-free;

then place into 800°C±25°C high-temperature oven to burn for 2h; cool off to about

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 5 pages — is available in the English PDF.

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