German standard methods for the examination of water, waste water and sludge - Parameters characterizing effects and substances (group H) - Part 56: Gravimetric determination of low volatile lipophilic substances after solvent extraction (H 56)— 11 стр.
Determination of roughnesse parameters R<(Index)a>, R<(Index)z>, R<(Index)max> by means of electrical stylus instruments; conversation of parameter R<(Index)a> to R<(Index)z> and vice versa— 2 стр.
Plain bearings; quality assurance of plain bearings; checking the geometrical tolerances and surface roughness of shafts, collars, and thrust collars— 4 стр.