OAR 860-023-0050: Heating Value Tests — Records and Reports

(1) Each gas utility shall test the heating value of manufactured or mixed gas being furnished to the distribution system at least once a day except Sundays and holidays. Original test data shall be recorded on the gas utility’s standard forms and preserved for at least three years. (2) Each gas utility supplying natural gas shall make sufficient tests, or have access to such tests made by its suppliers, to maintain the established heating value. (3) These tests shall be made at a location, or locations, which will ensure a representative sampling of gas being sent out to the distribution systems. A monthly summary shall be made from these tests. (4) The variation permitted from the established total heating value shall not exceed an amount consistent with normal satisfactory appliance operation.