Calibration of liquid provers

摘要

Liquid provers are those provers used to prove meters in liquid service. The purpose of the calibration of a liquid prover is to determine its base volume, in accordance with industry accepted practices, and traceable to recognized standards. Thus the base volume of a prover (BPV) might be determined in accordance with the Manual of Petroleum Measurement Standards (MPMS) of the Amercan Petroleum Institute (API), and be traceable to the National Institute of Standards and Technology (NISt). The base volume of a prover (BPV) is its certified volume at standard conditions (e.g. 60 degrees F and 0 psig in U.S. Customary units, or 15 degrees C and 101.325 kPa in international, Sl units).