Value 0
Perfectly smooth cut edges, without chipping.
A perfectly clean imaged cross-cut screen without any coating loss.
Value 1
Slight chipping at the intersections of the grid lines.
Chipped area not greater than 5 % of the grid cut area.
Value 2
Spalling along the cut edges and/or at the intersections of the grid lines.
Chipped area greater than 5 % but not greater than 15 % of the grid cut area.
Value 3
Chipping along the cut edges and/or of squares (whole + partial).
Chipped area greater than 15 % but not greater than 35 % of the grid cut area.
Value 4
Chipping along the cut edges and/or of squares (whole + partial).
chipped area greater than 35 % but not greater than 65 % of the grid cut area.
Value 5
Spalling whose coating loss is significantly more than 65% of the total grid cut area.
And which therefore can no longer be assessed with a characteristic value of 4.
ERICHSEN Testing Equipment
ERICHSEN is involved, among other things, with demand-oriented testing of high-quality surfaces. As a partner to users and research, and through long-standing collaboration with standard-relevant committees, we have established a range of test instruments over the years with which quality-related properties of many products can be determined precisely and conveniently.
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