ISO 26723:2020
Plastics — Determination of total luminous transmittance and reflectance

Standard No.

ISO 26723:2020

Release Date

2020

Published By

International Organization for Standardization (ISO)

Latest

ISO 26723:2020

Scope

This document specifies the determination of total luminous transmittance and total luminous reflectance on clear, translucent or opaque plastics. Specimen shapes include moulded plaque or discs, films and sheets. Fluorescent plastics and chromatic colour plastics are not covered by this document. NOTE The scope of ISO 13468-1 shows that ISO 13468-1 covers planar transparent and substantially colourless plastics. The method in this document provide the way to trap diffused light and covers to measure translucent and opaque plastics.

ISO 26723:2020 Referenced Document

• ISO 11664-2 Colorimetry — Part 2: CIE standard illuminants
• ISO 291 Plastics - Standard atmospheres for conditioning and testing
• ISO/CIE 11664-1 Colorimetry — Part 1: CIE standard colorimetric observers

ISO 26723:2020 history

• 2020 ISO 26723:2020 Plastics — Determination of total luminous transmittance and reflectance