标准编号:	GB 31604.9-2016
中文名称:	食品安全国家标准 食品接触材料及制品 食品模拟物中重金属的测定
英文名称:	National Food Safety Standard -Food Contact Materials and Articles - Determination of Heavy Metals in Food Simulants
行业分类:	GB    国家标准
发布机构:	中华人民共和国国家卫生和计划生育委员会
发布日期:	2016-08-31
实施日期:	2016-9-20
标准状态:	valid
替代旧标准:	GB/T 5009.60-2003 食品包装用聚乙烯、聚苯乙烯、聚丙烯成型品卫生标准的分析方法 GB/T 5009.61-2003 食品包装用三聚氰胺成型品卫生标准的分析方法 GB/T 5009.64-2003 食品用橡胶垫片(圈)卫生标准的分析方法 GB/T 5009.65-2003 食品用高压锅密封圈卫生标准的分析方法 GB/T 5009.66-2003 橡胶奶嘴卫生标准的分析方法 GB/T 5009.67-2003 食品包装用聚氯乙烯成型品卫生标准的分析方法 GB/T 5009.68-2003 食品容器内壁过氯乙烯涂料卫生标准的分析方法 GB/T 5009.70-2003 食品容器内壁聚酰胺环氧树脂涂料卫生标准的分析方法 GB/T 5009.70-2003 食品容器内壁聚酰胺环氧树脂涂料卫生标准的分析方法
翻译语言:	英文
文件格式:	PDF
中文字符数:	5000 字
翻译价格(元):	240.0
交付时间:	付款后 1 个工作日

1 Scope This standard specifies the determination method of heavy metals in food simulants (4% acetic acid). Method I of this standard is applicable to the determination of heavy metals in food simulants (4% acetic acid) of food contact materials and articles. Method II of this standard is applicable to the determination of heavy metals in food simulants (4% acetic acid) of food contact rubbers. Method I Direct Colorimetry 2 Theory React the heavy metal (calculated by lead) in test solution of food simulant obtained from migration test with sodium sulfide, form the yellowish-brown sulfide in acid solution, then compare its color with the color of lead standard solution. 3 Reagents and Materials Note: 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 Sodium sulfide 9-hydrate (Na2S·9H2O). 3.1.2 Glycerol (C3H8O3). 3.1.3 Glacial acetic acid (CH3COOH). 3.1.4 Nitric acid (HNO3 with mass fraction of 60%). 3.2 Preparation of reagents 3.2.1 Nitric acid solution (with mass fraction of 10%): pipet 16.7mL of nitric acid (3.1.4) and dilute with water to 100mL.

Foreword I 1 Scope 2 Theory 3 Reagents and Materials 4 Apparatuses 5 Analytical Procedures 6 Expression of Analysis Results 7 Theory 8 Reagents and Materials 9 Apparatuses 10 Analytical Procedures 11 Expression of Analysis Results