ISO 12137-2-1997 “Determination of the scratch resistance of paints and varnishes – Part 2: Method for drawing needles with a pointed tip”

ISO 12137:2011 specifies a method for determining the abrasion resistance of a single coating or the upper layer of a multi-layer system of paint, varnish or related products using a curved (annular or ring-shaped) probe. The test has been found to be useful in comparing the abrasion resistance of different coatings. It is useful for offering a range of coated panels that exhibit significant differences in abrasion resistance. ISO 12137 does not specify a method for using a pointed pen; two are specified in ISO 1528-1 and ISO 1528-2, respectively. The choice between the three approaches will depend on the particular practical problem.

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