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Title: Design, Calibration And Operation Of Field Standard Test Measures
Author: Daniel m. Comstock
Source: 1999 International School of Hydrocarbon Measurement
Year Published: 1999
Abstract: Atmospheric metal volumetric measures with a top neck and graduated scale, traceable to a recognized national calibration agency such as the National Institute of Standards and Technology (NIST), are known as fie/d stindards. They are used for the purpose of calibrating liquid meter provers. NIST generally refers to hand held measures ( 10 gallons) which are drained overhead as fast measwws, and to stationary measures ( 10 gallons ands 1500 gallons) which are drained by a bottom drain valve as provers. Since field standards are used in the waterdraw calibration of liquid meter provers (volumetric tank and displacement types), the American Petroleum Institute (API) has adopted the convention of referring to both types of standards as field stindard test meesums. For brevity, field standard test measures will be referred to as fie/d standards or measures in this paper. Norma/ sensitivity measures are those typically used for provers larger than 15 gallons displaced volume. High sensitivity measures are those typically used for provers smaller than or equal to 15 gallons. All field standard test measures must be handled, transported and stored with care to prevent jeopardizing the integrity of their calibrations.

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