ASTM D 3363 - 05 Standard Test Method for Film Hardness by Pencil Test

American Society for Testing and Materials (ASTM). Current edition approved Jan. 1, 2005. Published February 2005. Originally approved in 1974. Last previous edition D approved in 2000 as D 3363 – 00. 3 p. This test method covers a procedure for rapid, inexpensive determination of the film hardness of an organic coating on a substrate in terms of drawing leads or pencil leads of known hardness.
This test method is similar in content (but not technically equivalent) to ISO 15184.