Meter test records

Each utility shall maintain records of each test made of a meter for not less than two years. Test records shall include the following: (1) The date and reason for the test; (2) the type and capacity of the meter; (3) the reading of the meter before making the test; (4) the accuracy \"as found\" at each rate of flow; (5) the accuracy \"as left\" at each rate of flow; (6) if the test of the meter is made by using a standard meter, the utility shall retain all data taken at the time of the test in sufficient form to permit the convenient checking of the test methods and the calculations.