Coating Reference Handbook - Hempel

HEMPEL
ESTIMATING SIZE R19a
OF AFFECTED AREAS.
HEMPEL'S "SHIP-DATA" system makes often use of an area estimation system
using few, but easy to estimate ratings:
This system divides into a simple 5 groups:
GROUP DEFECTIVE AREA % EXAMPLES:
0 0 2L means 2-5 % defective
1 25 area with scattered defects.
5 100
SCATTERED 2% LOCAL
INSPR19a ed1 VALIDITY SUBJECT TO CONFIRMATION 28/07/95 EMi