There are several parameters for expressing waviness height, the most common being Wa & Wt, for average waviness and total waviness, respectively [REF].
Waviness is included in the ISO standards ISO 4287[REF] and ISO 16610-21[REF] as well as the U.S. standard ASME B46.1,[REF] and it is part of the surface texture symbol used in engineering drawings [REF].