GB 31604.3-2016 Translated English of Chinese Standard. GB31604.3-2016: National Food Safety Standard - Food Contact Materials and Products - Determination of Resin Drying Weight LossThis Standard specifies the determination of resin drying weight loss in food contact materials and products. This Standard is applicable to determination of polyethylene resin and polystyrene resin drying weight loss in food contact materials and products. |