EN ISO 13468-1:1996 Plastics - Determination of Total Luminous Transmittance of Transparent Materials - Part 1: Single-Beam Instrument ISO 13468-1: 1996
2019EN ISO 13468-1:2019 Plastics - Determination of the total luminous transmittance of transparent materials - Part 1: Single-beam instrument (ISO 13468-1:2019)
1996EN ISO 13468-1:1996 Plastics - Determination of Total Luminous Transmittance of Transparent Materials - Part 1: Single-Beam Instrument ISO 13468-1: 1996