ISO-7668 › 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°

ISO-7668 - 4TH EDITION - CURRENT
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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.

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25.220.20 (Surface treatment Including anodization, conversion coating, thermal spraying, etc.)

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Document Number

ISO 7668:2021

Revision Level

4TH EDITION

Status

Current

Publication Date

Aug. 1, 2021

Committee Number

ISO/TC 79/SC 2