MIL-STD-10A (NOTICE 2), MILITARY STANDARD: SURFACE ROUGHNESS, WAVINESS, AND LAY (25 OCT 1963) [S/S BY ANSI B46.1-78]., This standard establishes a uniform system for the identification and specification of the geometric irregularities of the surfaces of solid materials. It provides, through the use of symbols and numerical classifications, a means for accurately expressing surface roughness, waviness, and lay requirements on drawings, in specifications, or verbally.