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GB 31604.6-2016 PDF in English


GB 31604.6-2016 (GB31604.6-2016) PDF English
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GB 31604.6-2016English70 Add to Cart 0-9 seconds. Auto-delivery. National Food Safety Standard -- Food Contact Materials and Articles -- Determination of Ignition Residue in Resin Valid
Standards related to (historical): GB 31604.6-2016
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GB 31604.6-2016: PDF in English

GB 31604.6-2016 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA GB/T 31604.6-2016 National Food Safety Standard – Food Contact Materials and Products – Determination of Burning Residues in Resin ISSUED ON. AUGUST 31, 2016 IMPLEMENTED ON. MARCH 1, 2017 Issued by. National Health and Family Planning Commission of PRC Table of Contents Foreword ... 3 1 Scope ... 4 2 Principle ... 4 3 Apparatus ... 4 5 Expression of Analytical Results ... 5 6 Precision ... 5 National Food Safety Standard – Food Contact Materials and Products – Determination of Burning Residues in Resin 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 ......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.