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Repeat measurements were made on both the thin and thick 250 mm EEC orifice plates to check the repeatability of the lead foil technique used and to check for possible wear of the plates during the flow tests. It was concluded that the rounding had increased and, in two thick plates which had not been measured previously, it was unacceptable. The meter run was also checked and was found to have rusted, following the water tests at NEL.

Additional information

Authors: HARBRINK B, Ruhrgas AG, Essen (DE)
Bibliographic Reference: EUR 13734 EN (1991) 35 pp., MF, ECU 4
Availability: (2)
Record Number: 199110963 / Last updated on: 1994-12-02
Original language: en
Available languages: en