This International Standard describes a test procedure for assessing the protection offered by coatings of paints or varnishes on aluminium and aluminium alloys against corrosion arising from a scribe mark cut through the coating, when the coated panel is subjected to a test regime of alternate immersion in and removal from a dilute salt solution.
Tämän julkaisun valmistelusta Suomessa vastaa Kemesta ry, puh. 040 820 4888.
Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Required supplementary information
5 Initial test solution
6 Apparatus
7 Sampling
8 Test panels
8.1 Material and dimensions
8.2 Preparation and coating of panels
8.3 Drying and conditioning
8.4 Dry film thickness
8.5 Preparation of scribe marks
9 Procedure
10 Inspection of test panels
11 Precision
12 Test report
Annex A Required supplementary information (normative)
ISO 1513:1992 Paints and varnishes -- Examination and preparation of samples for testing
ISO 1514:2004 Paints and varnishes -- Standard panels for testing
ISO 15528:2000 Paints, varnishes and raw materials for paints and varnishes -- Sampling
ISO 1513:1992 Paints and varnishes -- Examination and preparation of samples for testing
ISO 1514:2004 Paints and varnishes -- Standard panels for testing
ISO 15528:2000 Paints, varnishes and raw materials for paints and varnishes -- Sampling
ISO 2808:1997 Paints and varnishes -- Determination of film thickness
ISO 3270:1984 Paints and varnishes and their raw materials -- Temperatures and humidities for conditioning and testing
ISO 3696:1987 Water for analytical laboratory use -- Specification and test methods
ISO 4628-1:2003 Paints and varnishes -- Evaluation of degradation of coatings -- Designation of quantity and size of defects, and of intensity of uniform changes in appearance -- Part 1: General introduction and designation system
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