ISO 6272-1:2011 describes a method for evaluating the resistance of a dry film of paint, varnish or related product to cracking or peeling from a substrate when it is subjected to a deformation caused by a falling weight, with a 20-mm-diameter spherical indenter, dropped under standard conditions. NOTE The terms "impact" and "impact resistance" are used in the title and text of ISO 6272-1, but an important characteristic of the apparatus used is that it should produce rapid deformation rather than a true impact. The method described can be applied
either as a pass/fail test, the test being carried out from one drop height and with a specified mass, so as to test compliance with a particular specification; or as a classification test, to determine, by gradually increasing the drop height and/or the mass, the minimum mass and/or drop height for which the coating cracks or peels from its substrate.
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Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Principle
4 Apparatus
5 Sampling
6 Test panels
6.1 Substrate
6.2 Preparation and coating
6.3 Drying
6.4 Thickness of coating
7 Procedure
7.1 General
7.2 Pass/fail test (using a specified mass)
7.3 Classification test (to determine the minimum drop height and mass which will cause cracking or peeling)
ISO 13076:2012 Paints and varnishes -- Lighting and procedure for visual assessments of coatings
ISO 1513:2010 Paints and varnishes -- Examination and preparation of test samples
ISO 1514:2004 Paints and varnishes -- Standard panels for testing
ISO 13076:2012 Paints and varnishes -- Lighting and procedure for visual assessments of coatings
ISO 1513:2010 Paints and varnishes -- Examination and preparation of test samples
ISO 1514:2004 Paints and varnishes -- Standard panels for testing
ISO 15528:2000 Paints, varnishes and raw materials for paints and varnishes -- Sampling
ISO 2808:2007 Paints and varnishes -- Determination of film thickness
ISO 3270:1984 Paints and varnishes and their raw materials -- Temperatures and humidities for conditioning and testing