Name: UNI EN ISO 21227-4 : 2008
Brand: UNI

PAINTS AND VARNISHES - EVALUATION OF DEFECTS ON COATED SURFACES USING OPTICAL IMAGING - PART 4: EVALUATION OF FILIFORM CORROSION

Published date

17-07-2008

Publisher

Ente Nazionale Italiano di Unificazione (UNI)

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Requirements
6 Calibration
7 Procedure
8 Image evaluation
9 Precision
10 Test report
Annex A (informative) - Extended evaluation
Bibliography

Provides a method for evaluating filiform corrosion by means of digital optical imaging.

DocumentType	Standard
PublisherName	Ente Nazionale Italiano di Unificazione (UNI)
Status	Current

Standards	Relationship
ISO 21227-4:2008	Identical
EN ISO 21227-4:2008	Identical

ISO 4623-2:2016	Paints and varnishes Determination of resistance to filiform corrosion Part 2: Aluminium substrates
ISO 21227-1:2003	Paints and varnishes — Evaluation of defects on coated surfaces using optical imaging — Part 1: General guidance
ISO 4623-1:2000	Paints and varnishes Determination of resistance to filiform corrosion Part 1: Steel substrates
ISO 4628-10:2016	Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of defects, and of intensity of uniform changes in appearance — Part 10: Assessment of degree of filiform corrosion
EN 3665 : 1997	AEROSPACE SERIES - TEST METHODS FOR PAINTS AND VARNISHES - FILIFORM CORROSION RESISTANCE TEST ON ALUMINIUM ALLOYS