ALTANA Hoffman Scratch Hardness Tester Operating Instructions - Manual (Page 3)

2
Description
This instrument consists of an applicator blade
The Hoffman Scratch Hardness Tester was
developed by the National Paint, Varnish and
Lacquer Association and has been produced by
BYK-Gardner for many years. This instrument
was designed to fi ll the need for a simple portable
device to rate scratch resistance and adhesion of
industrial product fi nishes on a comparative basis.
It is an ideal tool for laboratory or fi eld use.
Description