This standard covers the determination of total luminous transmittance of visual light of planar transparent and substantially colourless plastics, by using a photometer, employing a defined light source and a photodetector corresponding to the CIE standard. This standard can not be applied to plastics which contain fluorescent materials.
DS/EN ISO 13468-1:1997 history
1997DS/EN ISO 13468-1:1997 Plastics - Determination of total luminous transmittance of transparent materials - Part 1: Single-beam instrument