ISO 13468-1:1996

Plastics — Determination of the total luminous transmittance of transparent materials — Part 1: Single-beam instrument

Deals with the determination of the total luminous transmittance, in the visible region of the spectrum, of planar transparent and substantially colourless plastics, using a single-beam photometer with a specified CIE standard light source and photodetector. Does not apply to plastics which contain fluorescent substances.