LST EN ISO 13468-1:2000 Plastics - Determination of total luminous transmittance of transparent materials - Part 1: Single-beam instrument (ISO 13468-1:1996)
2000LST EN ISO 13468-1:2000 Plastics - Determination of total luminous transmittance of transparent materials - Part 1: Single-beam instrument (ISO 13468-1:1996)