Section 480-90-348 - Frequency of periodic meter tests(1) The minimum periodic test interval for gas meters, other than orifice meters, is as follows: (a) Meters with capacity up to three thousand cubic feet per hour - Every ten years;(b) Meters with capacity three thousand cubic feet per hour and over - Every five years.(2) The minimum periodic test interval for orifice meters is as follows: (a) Differential gauges - At least once each three months;(b) Orifice plate - At least once each year.(3) A meter sampling program may be implemented by the utility in lieu of the basic periodic test interval as provided for under WAC 480-90-343, Statement of meter test procedures.Wash. Admin. Code § 480-90-348
Statutory Authority: RCW 80.01.040 and 80.04.160. 01-11-003 (Docket No. UG-990294, General Order No. R-484), § 480-90-348, filed 5/3/01, effective 6/3/01.