Historical
ISO 10216:1992
Anodized aluminium and aluminium alloys - Instrumental determination of image clarity of anodic oxidation coatings - Instrumental method
The method is based on light coming through a first slit (light source), being converted to parallel light through a first lens (collimator), reflected at the surface of the test piece, focussed at a combed sliding shutter through a second lens (condensing lens). The signal measured by a photo-receiver behind the shutter is a measure of image clarity. Optical evenness of the test piece is shown by the ratio of the longitudinal and transverse values when the shutter is appropriately slid.
CONTENT PROVIDER
International Organization for Standardization [iso]
International Organization for Standardization [iso]
