Describes the characteristics and parameters for the topography of machined and self-finished surfaces. Covers the parameters R$da, R$dz, R$dy, S$dm, S and t$dp.
BS 1134-1:1988 history
2010BS 1134:2010 Assessment of surface texture. Guidance and general information
1988BS 1134-1:1988 Assessment of surface texture. Methods and instrumentation