90.93 Standard confirmed Sep 23, 2022
ISO
ISO/TC 35/SC 9 General test methods for paints and varnishes
International Standard
87.040 Paints and varnishes
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.
WITHDRAWN
ISO 6272-1:2002
PUBLISHED
ISO 6272-1:2011
90.93
Standard confirmed
Sep 23, 2022