标准号:ISO 9944-1990
中文标准名称:塑料 酚醛树脂 树脂萃取物电导率的测定
英文标准名称:Plastics; phenolic resins; determination of electrical conductivity of resin extracts
标准类型:G31
发布日期:1999/12/31 12:00:00
实施日期:1990/12/15 12:00:00
中国标准分类号:G31
国际标准分类号:83.080.10
适用范围:Important for applications in which such resins are used as impregnating materials. The principle is based on addition of an acetone/water mixture to a solution of the resin. The precipitate thus produced is allowed to settle, and the conductance of the suspension remaining above the resin is measured. The conductivity, expressed in microsiemens per centimetre, is then calculated from the measured conductance.