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Abstract

As three of the original EEC 250 mm orifice plates had been damaged, a new set of three was manufactured by Den Holder BV and measured geometrically by the manufacturer, Gasunie and the Dutch Metrology Service. The measurements covered edge sharpness, roughness, flatness, diameter, circularity and concentricity of the plates.

Additional information

Authors: WILLEMSE A J, Nederlandse Gasunie N.V., Groningen (NL)
Bibliographic Reference: EUR 13737 EN (1991) 30 pp., MF, ECU 4
Availability: (2)
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