This part of ISO 2812 specifies spotting methods for determining the resistance of an individual layer or multi-layer system of coating materials to the effects of liquids or paste-like products.These methods enable to determine the effects of the test substance on the coating and,if necessary,to assess the damage to the substance.
EN ISO 2812-4:2007 history
2017EN ISO 2812-4:2017 Paints and varnishes - Determination of resistance to liquids - Part 4: Spotting methods
2007EN ISO 2812-4:2007 Paints and varnishes - Determination of resistance to liquids - Part 4: Spotting methods (ISO 2812-4:2007)