标准号:ISO 119-1977
中文标准名称:塑料 酚-醛模塑件 游离酚的测定 碘量法
英文标准名称:Plastics; Phenol-formaldehyde mouldings; Determination of free phenols; Iodometric method
标准类型:G31
发布日期:1999/12/31 12:00:00
实施日期:1999/12/31 12:00:00
中国标准分类号:G31
国际标准分类号:83.140.99
适用范围:A semiquantitative method for the determination of the amount of free phenols in phenolic mouldings. Hot water extraction of free phenols from a powdered test portion, iodination of the water extract and backtitration of the excess of iodine with standard volumetric thiosulfate solution.