SURFACE ROUGHNESS COMPARATOR GRIT, SHOT
A precision nickel comparator plate which
conforms to International Standard
ISO 8503 for grit and shot blast surface
roughness comparison measurement.
Comparators allow the estimation of
surface roughness by touch and sight.
They are split into four sections, each with
a different and defined roughness.
Comparators are available in both grit and
shot blasted versions.
The grit version is split into sections
equivalent to 25, 60, 100 and 150
The shot version is split into sections
equivalent to 25, 40, 70 and 100 microns.