EN ISO 13468-2:2021

Plastics - Determination of the total luminous transmittance of transparent materials - Part 2: Double-beam instrument (ISO 13468-2:2021) EN ISO 13468-2:2021

Publication date:   Sep 16, 2021

General information

60.60 Standard published   Jun 16, 2021

CEN

CEN/TC 249 Plastics

European Norm

83.080.01   Plastics in general

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Scope

This document covers the determination of the total luminous transmittance, in the visible region of the spectrum, of planar transparent plastics and substantially colourless plastics, using a double-beam scanning spectrophotometer. This document cannot be used for plastics which contain fluorescent materials.
This document is applicable to transparent moulding materials, films and sheets not exceeding 10 mm in thickness.
NOTE 1   Total luminous transmittance can also be determined by a single-beam instrument as in ISO 13468-1.
NOTE 2   Substantially colourless plastics include those which are faintly tinted.
NOTE 3   Specimens more than 10 mm thick can be measured provided the instrument can accommodate them, but the results cannot be comparable with those obtained using specimens less than 10 mm thick.

Life cycle

PREVIOUSLY

WITHDRAWN
EN ISO 13468-2:2006

NOW

PUBLISHED
EN ISO 13468-2:2021
60.60 Standard published
Jun 16, 2021