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Comparative roughness measurements were made within twelve institutes and three manufacturers of surface measuring instruments in nine countries of the European Community. The measurement specimens were one depth-adjustment standard, three calibrated roughness standards (PTB-Rauhnor male) with irregularly ground profiles, and four Etalons de Rugosité L.C.A. with lathe-turned profiles. A variety of different measuring instruments was used in the 15 laboratories. The aim was to test the comparability of the measuring results in order to harmonise measuring conditions throughout Europe.

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Authors: HILLMANN W, Physikalisch-Technische Bundesanstalt, Braunschweig (DE)
Bibliographic Reference: Article: Qualitätstechnik Zeitschrift (QZ), Vol. 36 (1991) No. 12, pp. 708-709
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