SIS SS-ISO 175-1987 塑料．液体化学品的影响，包括水

标准号：SIS SS-ISO 175-1987
中文标准名称：塑料．液体化学品的影响，包括水
英文标准名称：Plastics - Determ i nation of the effects of liquid chemicals, including water
发布日期：1987/12/25 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This International Standard specifies a method of expos-ing test specimens of plastic materials, free from all external restraint, to liquid Chemicals, and methods for determining the changes in properties resulting from such exposure.1.2 It only considers, therefore, testing by immersion of the entire surface of the test specimen.1'1.3 It is applicable to all solid plastics that are available in the form of moulding or extrusion materials, plates, tubes, rods or sheets, having a thickness greater than 0,1 mm. It is not applicable to cellul?r materials.1.4 Methods for determination of changes in properties are specified as follows :a) changes in m?ss, dimensions and appearance immediately after immersion or after immersion and drying;b) changes in physical properties (mechanical, thermal, optical, etc.) immediately after immersion or after immersion and drying.1.4.1 The test immediately after immersion is used when it is required to ascertain the state of the material while still acted upon by the liquid.1.4.2 The test after immersion and drying is used when it is required to ascertain the state of the material after the liquid, if it is volatile, has been eliminated. It can allow determination of the influence of a soluble constituent.