GM9073P 1989 Edition, April 1989
SHEET METAL SURFACE TEXTURE MEASUREMENTS
Includes all amendments and changes through Inactive Notice , February 2000
Additional Comments: ENGLISH * INAC S/S BY SAE J911
Published By:General Motors Company (GMNA)
This test method establishes a procedure to determine the arithmetical average surface roughness (u and peak frquency (peak count/inch) on sheet metal surfaces.