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20.55.06.00.htm 20.55.06.00. Title 20 PUBLIC SERVICE COMMISSION Subtitle 55 SERVICE SUPPLIED BY GAS COMPANIES Chapter 06 Metering Test Facilities and Equipment Authority: Public Utilities Article, §2-121, 5-101, and 7-301, Annotated Code of Maryland
20.55.06.01.htm 20.55.06.01. 01 Meter Shop.. A. Meter Shop. Each utility shall maintain or designate a meter shop for the purpose of inspecting, testing, and repairing meters. The shop shall be open for inspection by authorized representatives of the Commission at all reasonable times, and the facilities and equipment, as well as the methods of making the measurements and tests employed, shall be subject to the approval of the Commission.B. Temperature Control. The area within the meter
20.55.06.02.htm 20.55.06.02. 02 Provers and Attachments.. A. Required. Each utility shall own and maintain, or have access to, one or more calibrated meter provers of appropriate size, and all other equipment necessary to test meters.B. Temperature Control of Bell Provers. Means shall be provided to maintain the temperature of the liquid in the bell provers at substantially the same level as the air temperature in the prover room. The maximum difference in temperature should not 1) Each meter prover shal
20.55.06.03.htm 20.55.06.03. 03 Other Working Standards.. A. Approved. Utilities may test meters by other methods approved by the Commission or by use of other working standards approved by the Commission.B. Accuracy. The approved working standards shall be maintained in good condition and correct adjustment, shall have a high degree of repeatability, and shall be capable of determining the actual proof of the meter under test to within ±0.5 percent at rates of flow between 15 percent and 100 percent
20.55.06.04.htm 20.55.06.04. 04 Pressure Test Equipment.. Each utility which corrects meter readings to compensate for pressure shall have dead weight testers, test quality electronic pressure transducer gauges, test quality precision type bourdon tube spring gauges, mercury manometers, or field type dead weight pressure gauges as necessary for the proper testing of the pressure correcting devices.
20.55.06.05.htm 20.55.06.05. 05 Temperature Test Equipment.. Each utility which corrects meter readings to compensate for temperature shall have accurate thermometers and other equipment as necessary for the proper testing of the temperature correcting devices.
20.55.06.06.htm 20.55.06.06. 06 Certificates.. Each standard shall be accompanied at all times by a certificate or calibration card, duly signed and dated, on which are recorded the corrections required to compensate for errors found at the customary test points at the time of the last previous test.
20.55.06.07.htm 20.55.06.07. 07 Care in Handling.. Care shall be exercised in the use and handling of test equipment to assure that the accuracy is not impaired.
20.55.06.9999.htm 20.55.06.9999. Administrative History Effective date: July 1, 1964 (Order No. 55567). Chapter revised effective October 21, 1974 (Order No. 60922). Regulation .01C amended effective February 7, 2000 (27:2 Md. R. 146). Regulation .02 amended effective May 5, 1986 (13:9 Md. R. 1032) February 7, 2000 (27:2 Md. R. 146). Regulation .03A amended effective February 7, 2000 (27:2 Md. R. 146). Regulation .04 amended effective February 7, 2000 (27:2 Md. R. 146).
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