IS 101 Pt.5/Sec.2-1988 Methods of sampling and testing of coatings, varnishes and related products Part 5 Mechanical Tests Section 2: Flexibility and Adhesion
Prescribes the following four tests for determination of flexibility and adhesion:
a) Bend test,
b) Scratch hardness test,
c) Cupping test, and
d) Pull off test.