標準號：SIS SS-ISO 175-1987
中文標準名稱：塑料．液體化學品的影響，包括水
英文標準名稱：Plastics - Determ i nation of the effects of liquid chemicals, including water
發(fā)布日期：1987/12/25 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：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.