PLASTICS - DETERMINATION OF THE TOTAL LUMINOUS TRANSMITTANCE OF TRANSPARENT MATERIALS - PART 2: DOUBLE-BEAM INSTRUMENT (ISO 13468-2:1999, IDT)
This Malaysian Standard 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 spectrophotometer. This standard cannot be used for plastics which contain fluorescent materials.