Reference number
ISO 7668:2021
© ISO 2025
International Standard
ISO 7668:2021
Anodizing of aluminium and its alloys — Measurement of specular reflectance and specular gloss of anodic oxidation coatings at angles of 20°, 45°, 60° or 85°
Edition 4
2021-08
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Published (Edition 4, 2021)

ISO 7668:2021

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CHF 65
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Abstract

This document specifies methods for the measurement of specular reflectance and specular gloss of flat samples of anodized aluminium using geometries of 20° (Method A), 45° (Method B), 60° (Method C) and 85° (Method D) and of specular reflectance by an additional 45° method (Method E) employing a narrow acceptance angle.

The methods described are intended mainly for use with clear anodized surfaces. They can be used with colour-anodized aluminium, but only with similar colours.

General information

  • Status
     : Published
    Publication date
     : 2021-08
    Stage
    : International Standard published [60.60]
  • Edition
     : 4
    Number of pages
     : 12
  • Technical Committee :
    ISO/TC 79/SC 2
    ICS :
    25.220.20 
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