IS 101 Pt.5/Sec.1-1988 Methods for sampling and testing of paints, varnishes and related products Part 5 Mechanical testing of paint films Section 1: Hardness test
Prescribes the following hardness tests for films formed by paints and allied products:
a) Pendulum test,
b) Indentation test,
c) Pencil hardness test, and
d) Pressure test.