Historical
ISO 13468-2:1999
Plastics -- Determination of the total luminous transmittance of transparent materials -- Part 2: Double-beam instrument
This part of ISO 13468 covers the determination of the total luminous transmittance, in the visible region of the spectrum, of planar transparent and substantially colourless plastics, using a double-beam scanning spectro-photometer. This part of ISO 13468 cannot be used for plastics which contain fluorescent materials.
This part of ISO 13468 is applicable to transparent moulding materials, films and sheets not exceeding 10 mm in thickness.
International Organization for Standardization [iso]