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 |
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Page
... position ....... Page 3 3 4 5 6 77 ( b ) In capacity cubic foot position ... 7 FIGURE 7. View of meter under test with adapter fittings and differential pressure gage ... 11 FIGURE 8. Rate cap holder , orifice plate , and assembly 11 ...
... position ....... Page 3 3 4 5 6 77 ( b ) In capacity cubic foot position ... 7 FIGURE 7. View of meter under test with adapter fittings and differential pressure gage ... 11 FIGURE 8. Rate cap holder , orifice plate , and assembly 11 ...
Page 2
... positions . The bell prover consists of an annular metal tank ( prover tank ) open at the top and nearly filled with a sealing medium ( usually an oil ) , in which a cylindrical tank called the bell , open at the bottom and having a ...
... positions . The bell prover consists of an annular metal tank ( prover tank ) open at the top and nearly filled with a sealing medium ( usually an oil ) , in which a cylindrical tank called the bell , open at the bottom and having a ...
Page 4
... position , and with the prover valves closed . DRY WELL PRESSURE PROVING BELL CORRECT LEVEL ( BELL DOWN ) FIGURE 3. Proper sealant level of prover . The prover should be checked daily for leaks . A leak test may be made after the ...
... position , and with the prover valves closed . DRY WELL PRESSURE PROVING BELL CORRECT LEVEL ( BELL DOWN ) FIGURE 3. Proper sealant level of prover . The prover should be checked daily for leaks . A leak test may be made after the ...
Page 5
... position before it descends , while the rising surfaces of the other will carry adhering liquid up- ward . Because the total involved surface area of the bell will not be the same as that of the bottle , a perfect duplication of ...
... position before it descends , while the rising surfaces of the other will carry adhering liquid up- ward . Because the total involved surface area of the bell will not be the same as that of the bottle , a perfect duplication of ...
Page 6
... position , by manipulating the rotary slide valve , so that the trial begins with a cubic - foot mark on the scale ... position to any other position , the volume of gas discharged will be equal to the outside volume above the seal at ...
... position , by manipulating the rotary slide valve , so that the trial begins with a cubic - foot mark on the scale ... position to any other position , the volume of gas discharged will be equal to the outside volume above the seal at ...
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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