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Homepage>BS Standards>83 RUBBER AND PLASTICS INDUSTRIES>83.080 Plastics>83.080.01 Plastics in general>BS EN ISO 13468-2:2021 Plastics. Determination of the total luminous transmittance of transparent materials Double-beam instrument
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immediate downloadReleased: 2021-06-30
BS EN ISO 13468-2:2021 Plastics. Determination of the total luminous transmittance of transparent materials Double-beam instrument

BS EN ISO 13468-2:2021

Plastics. Determination of the total luminous transmittance of transparent materials Double-beam instrument

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Standard number:BS EN ISO 13468-2:2021
Pages:14
Released:2021-06-30
ISBN:978 0 539 15574 7
Status:Standard
DESCRIPTION

BS EN ISO 13468-2:2021


This standard BS EN ISO 13468-2:2021 Plastics. Determination of the total luminous transmittance of transparent materials is classified in these ICS categories:
  • 83.080.01 Plastics in general

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.