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The additional geometric measurements on the EEC orifice plates and on the 250 mm meter run were carried out at the Gasunie laboratory at Westerbork to supplement the measurements made earlier. They included plate thickness, diameter, flatness and edge radii of the plates and the pipe wall roughness.

Additional information

Authors: WILLEMSE A J, Nederlandse Gasunie N.V., Groningen (NL)
Bibliographic Reference: EUR 13721 EN (1991) 62 pp., MF, ECU 4
Availability: (2)
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