ISO 4614:1977 塑料.三聚氰胺 甲醛模塑.可萃取的甲醛的测定

标准编号：ISO 4614:1977

中文名称：塑料.三聚氰胺 甲醛模塑.可萃取的甲醛的测定

英文名称：Plastics — Melamine-formaldehyde mouldings — Determination of extractable formaldehyde

发布日期：1977-07

标准范围

在规定的条件下，将模拟fodd和饮料的液体与样品材料的模塑接触。然后测定液体中的甲醛含量，并计算每单位面积的甲醛提取量。本文给出了以变色酸二钠盐或乙酰丙酮为试剂测定液体中甲醛的两种分光光度法。

Liquids simulating fodd and beverages are placed in contact with mouldings of the sample material, under defined conditions. The formaldehyde content of the liquid is then determined and the quantity of formaldehyde extracted per unit area of content is calculated. Two spectrophotometric methods for the determination of formaldehyde in the liquid, using chromotropic acid disodium salt or acetylacetone as reagents, are given.

标准预览图