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 2
... inside to a point above the level of the liquid . The prover tank is made of two concentric tanks with a distance of about two inches between them . The inner tank has an airtight top through which the air supply pipe passes . This ...
... inside to a point above the level of the liquid . The prover tank is made of two concentric tanks with a distance of about two inches between them . The inner tank has an airtight top through which the air supply pipe passes . This ...
Page 7
... inside and outside of the bell , designated by H. As the bell descends to position 100 , as shown in figure 6b , if there were no change in the level of the sealing liquid , the volume of gas , Q , discharged would be equal just to the ...
... inside and outside of the bell , designated by H. As the bell descends to position 100 , as shown in figure 6b , if there were no change in the level of the sealing liquid , the volume of gas , Q , discharged would be equal just to the ...
Page 10
... inside diameter ( d ) equal to that of the meter pipe connections within a tolerance of 1/32 in . The length of the adapters should be at least eight times their inside diameter ( d ) . The inside surface should be smooth and free from ...
... inside diameter ( d ) equal to that of the meter pipe connections within a tolerance of 1/32 in . The length of the adapters should be at least eight times their inside diameter ( d ) . The inside surface should be smooth and free from ...
Page 11
... inside surface of the adapter fitting or projects into the flow passage . Since the meters are tested with air as the test medium rather than the product they were designed to meter , the air capacity should be expressed in terms of gas ...
... inside surface of the adapter fitting or projects into the flow passage . Since the meters are tested with air as the test medium rather than the product they were designed to meter , the air capacity should be expressed in terms of gas ...
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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