District of Columbia Administrative Code

2351 GENERAL GAS METERING PROVISIONS 2351.1 A representative of the Commission shall check the condition of meters in the meter shop of the gas corporation from time to time by testing random samples of meters ready for installation. 2351.2 When any meter is inactive, whether ins…

2352 METERING TESTS 2352.1 Only authorized representatives of a gas corporation shall remove and set meters. Each gas corporation shall keep a record of the dates that each meter is set in and removed from service. 2352.2 The test of any meter or associated devices, or both, shal…

2353 METER TESTING FACILITIES 2353.1 Each gas corporation subject to the Commission's jurisdiction shall maintain or designate a meter shop within the Washington, D.C. metropolitan area for the purpose of inspecting, testing, and repairing meters. The gas corporation shall be res…

2354 BELL PROVERS 2354.1 Each gas corporation testing meters with bell provers shall do the following: (a) Own and maintain, or have access to, one (1) or more approved bell type meter provers of appropriate size, and all other equipment necessary to test meters, which shall be i…

2355 TEST OF TURBINE METERS 2355.1 Turbine meters for which the manufacturer has established minimum spin times, may be spin tested to determine their in-service condition. 2355.2 Turbine meters shall be given a spin test at least once every twelve (12) months unless covered unde…

2356 PRE-INSTALLATION TESTS OF ROTARY METERS 2356.1 Rotary meters on which an original test record of the differential pressures is established, as soon as practicable after installation, may subsequently be tested by comparing the new differential pressures with the original tes…

2357 PRE-INSTALLATION TESTS OF PRESSURE CORRECTING DEVICES 2357.1 While the pressure element is actuated, the mechanism may be driven either manually or by a motor. A dead weight tester or regulated air or gas pressure may be used to actuate the pressure element. If regulated air…

2358 PRE-INSTALLATION TESTS OF TEMPERATURE CORRECTING DEVICES 2358.1 Each gas corporation shall test temperature correcting devices by driving the mechanism while the temperature sensor is immersed in a temperature bath containing a precision thermometer that has an accuracy of p…

2359 PRE-INSTALLATION TESTS OF TIMING DEVICES 2359.1 The test of a timing device shall consist of precisely synchronizing the timing device and the working standard at the start of the test time interval. At the end of the test time interval, the working standard shall be stopped…

2360 PRE-INSTALLATION ACCURACIES 2360.1 All tolerances shall be interpreted as maximum permissible variation from the condition of zero (0) error. In making adjustments, no advantage of the prescribed tolerance limits shall be taken to set meters fast. 2360.2 In the reading and r…

2362 LEAK TESTS 2362.1 The meter shall not leak when subjected to pressure and shall be checked for leaks in the following manner: (a) Immersion; (b) Soap test; or (c) A pressure drop test of a type acceptable to the Commission's Office of Engineering. 2362.2 Tinned steel case me…

2367 REQUEST TESTS 2367.1 Upon a customer’s request and at no charge, the gas corporation shall make a test of the accuracy of the meter serving the customer; provided that the meter has not been tested within twelve (12) months prior to such request. 2367.2 The gas corporation s…

2368 REFEREE TESTS 2368.1 Upon a customer’s written application to the Commission, a test shall be made of the customer's meter as soon as practicable that shall be witnessed by a representative of the Commission. 2368.2 A one dollar ($1) fee shall be paid at the same time of the…

2369 AS FOUND TESTING 2369.1 Meters or associated metering devices, or both, shall be tested in place or after they are removed from service. These tests shall be made before the meters or associated metering devices, or both, are adjusted, repaired, or retired. SOURCE: Final Rul…

2370 PERIODIC AND PERFORMANCE TESTING 2370.1 Each gas corporation shall periodically test its meters, associated devices, and instruments to assure their accuracy unless otherwise authorized or required by the Commission. 2370.2 Each gas corporation may elect to test all meters i…

2371 IN-SERVICE PERFORMANCE TESTING 2371.1 The Commission's in-service performance testing program is designed to adjust automatically the number of meters required to be tested by a gas corporation based solely on the performance of the gas corporation’s meters, as determined by…

2374 CHARACTERISTICS OF GAS SUPPLIED TO CONSUMERS 2374.1 The determination of the characteristics of gas supplied to consumers may be made at any of the Commission's testing stations, or at any testing station designated by the Commission, at any hour by the use of standard gas t…

2375 SUPPLEMENTAL GAS PROVIDED BY STANDBY PLANT 2375.1 Mixtures of natural gas and the supplemental gas as provided by the standby plant shall be of heating value and burning characteristics as near as practicable to that of the currently used natural gas. 2375.2 On each day that…

2376 IMPURITIES OF GAS 2376.1 The gas supplied by any gas corporation shall not show the presence of any hydrogen sulphide at levels greater than twenty-five hundredths (0.25) grains per one hundred (100) standard cubic feet (SCF) of gas and shall not contain more than twenty (20…

2377 PRESSURE OF GAS SUPPLIED TO CONSUMERS 2377.1 The gas supplied by corporation low pressure (LP) district regulator station shall be maintained at a pressure of not less than six inches (6 in.) or more than ten inches (10 in.) of water pressure. Certain customers, however, req…