SS 323 Pt.B1-1987 软塑包装材料的测试方法．第B1部分：明塑料透光率和雾度的测定

标准号：SS 323 Pt.B1-1987
中文标准名称：软塑包装材料的测试方法．第B1部分：明塑料透光率和雾度的测定
英文标准名称：Methods Of Test For Flexible Plastic Packaging Materials Part B1 : Determination Of Haze And Luminous Transmittance Of Transparent Plastics
发布日期：1987/1/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This Standard describes a method for the measurement of the light-transmitting properties, and from these, the light-scattering properties, of planar sections of transparent plastics. Two procedures are covered as follows:1.1 Procedure A. Using the Hazemeter.1.2 Procedure B. Using the Recording Spectrophotometer.. The test method for measuring luminous transmiltance in Procedure A is a simplified procedure which should give results not significantly different from those obtainable if the light source were CIE Source A or C (specified) and the receptor had a spectral response corresponding to the luminosity function y of the CIE standard observer1.3 Specimens with haze values greater than 30% obtained by these test methods should be considered diffusing or translucent.