DeFelsko PosiTest CH Manual De Instrucciones página 9

CLASSIFICATION OF ADHESION TEST RESULTS
ASTM
Classification
5B
4B
3B
2B
1B
0B
ASTM D3359 (Method B)
Percent Area
Removed
The edges of the cuts
0%
smooth; none of the
None
squares of the lattice
Less than
5%
less than 5% of the
Small flakes of the
5 – 15%
intersections of cuts.
The area affected is
5 to 15% of the lattice.
edges and on parts
15 – 35%
The area affected is
The coating has flaked
along the edges of
cuts in large ribbons
and whole squares
35 – 65%
have detached. The
area affected is 35 to
Greater than
detachment worse
65%
than Classification 1B.
Description
are completely
is detached.
Small flakes of the
coating are
detached at
intersections;
area is affected.
coating are
detached along
edges and at
The coating has
flaked along the
of the squares.
15 to 35% of the
lattice.
65% of the lattice.
Flaking and
8
Surface of Cross-Cut Area
from which Flaking has
occurred for Six Parallel Cuts
and Adhesion Range by %