GRADE: (100 ISO 5) ( 90 ISO 4) ( 80 ISO 3) ( 70 ISO 2) ( 50 ISO 1) ( 0 ) 100-NO STICK OR WETTING OF THE SPECIMEN FACE 90-SUGHT RANDOM STICKING OR WETTING OF THE SPECIMEN FACE 80-WETTING OF SPECIMEN FACE AT SPRAY POINTS 70-PARTIAL WETTING OF SPECIMEN FACE BEYOND THE SPRIAY POINTS 50-COMPLETE WETTING OF ENTIRE SPECIMEN FACE BEYOND THE SPRAY POINTS 0-COMPLETE WETTING OF THE ENTIRE FACE OF THE SPECIMEN COLORED WATER USED FOR PHOTOGRAPHIC EFFECT. AATTCC,RESEARCH TRIANGLE PARK,N.C.