Paints and varnishes. Evaluation of defects on coated surfaces using optical imaging. Part 3: Evaluation of delamination and corrosion around a scribe (ISO 21227-3:2007)
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ISO 21227-3:2007 specifies a method for evaluating delamination and corrosion around a scribe by means of digital optical imaging. The damaged surface can be produced in accordance with ISO 9227, ISO 11997-1 or ISO 11997-2.
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Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Requirements
5.1 General
5.2 Illumination
5.3 Resolution
6 Calibration
7 Procedure
8 Evaluation
8.1 General
8.2 Mean width of delamination or corrosion
8.3 Rating in accordance with ISO 4628-8
9 Precision
10 Test report
Annex A Ratings in accordance with ISO 4628-8 to be used to evaluate the delamination and corrosion around a scribe (normative)
ISO 21227-1:2003 Paints and varnishes -- Evaluation of defects on coated surfaces using optical imaging -- Part 1: General guidance
ISO 4628-8:2005 Paints and varnishes -- Evaluation of degradation of coatings -- Designation of quantity and size of defects, and of intensity of uniform changes in appearance -- Part 8: Assessment of degree of delamination and corrosion around a scribe
ISO 21227-1:2003 Paints and varnishes -- Evaluation of defects on coated surfaces using optical imaging -- Part 1: General guidance
ISO 4628-8:2005 Paints and varnishes -- Evaluation of degradation of coatings -- Designation of quantity and size of defects, and of intensity of uniform changes in appearance -- Part 8: Assessment of degree of delamination and corrosion around a scribe