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 1-5 of 7
Page 1
... hour ) of a liquefied petroleum gas vapor - measuring device as recommended by the manufacturer . This rate of flow should cause a pressure drop across the meter of 1 / 2 - inch WC . check rate . A rate of flow usually 20 to 35 percent ...
... hour ) of a liquefied petroleum gas vapor - measuring device as recommended by the manufacturer . This rate of flow should cause a pressure drop across the meter of 1 / 2 - inch WC . check rate . A rate of flow usually 20 to 35 percent ...
Page 2
... hour . gage pressure . Pressure measured relative to atmos- pheric taken as zero ( i.e. psi of kPa ) . gage pressure , meter . The difference between the pressure at the meter and the atmospheric pressure . liquefied petroleum gas . A ...
... hour . gage pressure . Pressure measured relative to atmos- pheric taken as zero ( i.e. psi of kPa ) . gage pressure , meter . The difference between the pressure at the meter and the atmospheric pressure . liquefied petroleum gas . A ...
Page 4
... hours or longer ( overnight ) . If the rate of change in reading is greater than 1 percent of the rated prover volume per 6 hours [ 5 ] determine the cause and make corrections before using the prover for testing meters . It is possible ...
... hours or longer ( overnight ) . If the rate of change in reading is greater than 1 percent of the rated prover volume per 6 hours [ 5 ] determine the cause and make corrections before using the prover for testing meters . It is possible ...
Page 6
... hours is sometimes required for the temperature of the standard to stabilize and become equal to that of the prover to be tested . Because of its portability and its relatively small size compared to a bottle in an immersion tank , it ...
... hours is sometimes required for the temperature of the standard to stabilize and become equal to that of the prover to be tested . Because of its portability and its relatively small size compared to a bottle in an immersion tank , it ...
Page 9
... hours , since it is essential that the prover and the meters to be tested be as near the same temperature as possible . A difference of 5 ° F between the temperature of the prover and the temperature of the meters under test may produce ...
... hours , since it is essential that the prover and the meters to be tested be as near the same temperature as possible . A difference of 5 ° F between the temperature of the prover and the temperature of the meters under test may produce ...
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