GB 31630-2014
National Food Safety Standard - Food Additive - Polyvinyl Alcohol
食品安全国家标准 食品添加剂 聚乙烯醇
Catalogue
前言 → 1 范围 → 2 规范性引用文件 → 3 技术要求 → 附录A 检验方法 → 附录B 检验方法 Foreword → 1 Scope → 2 Normative References → 3 Technical Requirements → Annex A Test Methods → Annex B Test Methods
Scope
This standard applies to food additive polyvinyl alcohol produced by polymerization and alcoholysis using vinyl acetate as raw material.
本标准适用于以乙酸乙烯酯为原料，经聚合、醇解制得的食品添加剂聚乙烯醇。
Normative References
Keywords
Application Summary AI generated
Food additive manufacturers and quality inspection agencies use this standard to regulate the quality control of polyvinyl alcohol. It specifies physicochemical indices and test methods to ensure safety and consistency as a food additive. This standard is critical for ensuring that polyvinyl alcohol used in food processing meets national food safety requirements.
食品添加剂生产企业和质检机构使用该标准来规范聚乙烯醇的质量控制。该标准规定了聚乙烯醇的理化指标和检验方法，确保其作为食品添加剂的安全性和一致性。它对于保障食品加工中使用的聚乙烯醇符合国家食品安全要求至关重要。
AI Summary AI generated
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of food additive polyvinyl alcohol. It applies to products made from vinyl acetate via polymerization and alcoholysis. Key technical indices include loss on drying, residue on ignition, water insolubles, particle size, acid value, ester value, viscosity, and lead content. The test methods provide detailed procedures and calculations for each index.
本标准规定了食品添加剂聚乙烯醇的技术要求、检验方法、检验规则及标志、包装、运输和贮存。适用于以乙酸乙烯酯为原料经聚合醇解制得的产品。主要技术指标包括干燥减量、灼烧残渣、水不溶物、粒度、酸值、酯值、粘度、铅含量等。检验方法详细规定了各项指标的测定步骤和计算。
Key Sentences extracted from text
本标准适用于以乙酸乙烯酯为原料，经聚合、醇解制得的食品添加剂聚乙烯醇。
聚乙烯醇的技术要求应符合表1的规定。
干燥减量的测定：称取约5g试样，精确至0.0002g，在105℃±2℃干燥3h。
灼烧残渣的测定：称取约2g试样，精确至0.0002g，置于800℃±25℃灼烧至恒重的坩埚中。
酸值的测定：称取10.0g试样，精确至0.001g，置于锥形瓶中，加入200mL新煮沸并冷却的水溶解。
This standard applies to food additive polyvinyl alcohol produced by polymerization and alcoholysis using vinyl acetate as raw material.
The technical requirements for polyvinyl alcohol shall comply with the provisions of Table 1.
Determination of loss on drying: weigh about 5 g of the sample, accurate to 0.0002 g, and dry at 105 °C ± 2 °C for 3 h.
Determination of residue on ignition: weigh about 2 g of the sample, accurate to 0.0002 g, and place in a crucible ignited to constant weight at 800 °C ± 25 °C.
Determination of acid value: weigh 10.0 g of the sample, accurate to 0.001 g, place in a conical flask, and add 200 mL of freshly boiled and cooled water to dissolve.