Examination of Vapor-measuring Devices for Liquefied Petroleum Gas: A Manual for Weights and Measures Officials, Issue 117U.S. Department of Commerce, National Bureau of Standards, 1975 - 18 pages |
From inside the book
Results 1-4 of 4
Page 4
... proof of the bell . However , the proper selection of an oil will reduce these dis- advantages to a point where they can be ignored . Straw , transformer , or white oil have been found to be satisfactory . The oils should have approxi ...
... proof of the bell . However , the proper selection of an oil will reduce these dis- advantages to a point where they can be ignored . Straw , transformer , or white oil have been found to be satisfactory . The oils should have approxi ...
Page 11
... proof than was indicated by the first tests . The difference between successive tests may be as much as several percent . The cause of this may be the evaporation of condensates that might be inside of the meter , or , in the case of ...
... proof than was indicated by the first tests . The difference between successive tests may be as much as several percent . The cause of this may be the evaporation of condensates that might be inside of the meter , or , in the case of ...
Page 14
... proof , or accuracy of the meter may be calculated by the following formulas : Error in Delivery ( % ) = Corrected Prover Volume - Meter Indication Meter Indication Error in Indication ( % ) = Meter Indication - Corrected Prover Volume ...
... proof , or accuracy of the meter may be calculated by the following formulas : Error in Delivery ( % ) = Corrected Prover Volume - Meter Indication Meter Indication Error in Indication ( % ) = Meter Indication - Corrected Prover Volume ...
Page 16
... proof are calculated as follows : FOR TEMPERATURE COMPENSATED METERS Error is ( + ) if Prover Volume Corrected to 60 ° F is larger than Meter Indication and ( - ) if the opposite is true . Proof ( % ) = Corrected Prover Volume to 60 ° F ...
... proof are calculated as follows : FOR TEMPERATURE COMPENSATED METERS Error is ( + ) if Prover Volume Corrected to 60 ° F is larger than Meter Indication and ( - ) if the opposite is true . Proof ( % ) = Corrected Prover Volume to 60 ° F ...
Other editions - View all
Common terms and phrases
adapter fittings Altitude corrections factors atmospheric pressure automatic data processing Bureau of Standards butane calibration capacity rate commercial Corrected Prover Volume Corrected to 60 correction factors metric cubic feet cubic foot bottle cubic foot standard cubic meter customary units cycloid Devices for Liquefied diameter differential pressure gage Error in Delivery Examination of Vapor-Measuring Exterior view FIGURE Indication Meter Indication leak liquefied petroleum gas LPG Vapor Meter measures officials Measuring Devices metal Meter Indication Meter Meter Proving Circle meter under test metric units National Bureau Office orifice plate portable cubic foot position pressure drop prover bell prover oil prover outlet valve prover pressure prover room prover scale prover tank prover valve proving room psia Rate cap holder sample report form sealing liquid sealing medium Specific Gravity strapping temperature compensated meter Test data section test hand Test Report Form thermometers U.S. DEPARTMENT U.S. Government Printing Vapor-Measuring Devices weights and measures