ISO/TR 22770:2019 Preview
Preparation of steel substrates before application of paints and related products -- Analytical colorimetry method to support visual assessment of surface preparation grades
This document provides guidance on the usage of analytical colorimetry to support visual assessment of surface preparation grades described in ISO 8501-1:2007, Clause 4.
This document provides examples of applications where the use of a colorimeter or spectrophotometer can enable a quick and objective assessment of the preparation grade of the substrate.
NOTE The data given in this document was obtained using the methodology described in Annex A.
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