- (a) No service water meter shall be allowed in service which has an incorrect gear ratio or dial train, or is in any way mechanically defective, or shows an average error in measurement in excess of two percent (2%), plus or minus, when registering water at stream flow equivalent to approximately one-tenth (1/10), one-half (1/2), and full normal rating under average service pressure. When adjustment is necessary, such adjustment shall be made as accurately as practicable for average rate of flow under actual conditions of installation.
- (b) For purposes of application, the average error of a water meter is defined as one-third (1/3) of the algebraic sum of the errors when tested in accordance with (a) of this Section.
Amended at 31 Ok Reg 1091, eff 9-12-14