11.3 OTHER SYSTEMS

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The Root Means Squared (RMS) System (also known as Rq) is not commonly used in Canada,

The Peak to Valley method cuts the peaks off the wave, and then uses the band between to determine the roughness. This method is not commonly used in Canada.

A simple table that basically outlines the process capabilities of a number of processes is, [ANSI B46.1-1962]

A table of roughness measurements is given below [Krar],