1 This International Standard is one of a series of standards dealing with the sampling and testing of paints, varnishes and related products.
It specifies a method for determining the film hardness by pushing pencils of known hardness over the film.
The test can be performed on a single coating of a paint, varnish or related product, or on the upper layer of a multicoat system.
2 This rapid, inexpensive test has been found to be useful in comparing the pencil hardness of different coatings.
It is more useful in providing relative ratings for a series of coated panels exhibiting significant differences in pencil hardness.
The method is applicable only to smooth surfaces.
ISO 15184:1998 history
2020ISO 15184:2020 Paints and varnishes — Determination of film hardness by pencil test
2012ISO 15184:2012 Paints and varnishes - Determination of film hardness by pencil test
1998ISO 15184:1998 Paints and varnishes - Determination of film hardness by pencil test