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 1
... raised or low- ered in a tank which contains a sealing medium . With the level of the sealing medium properly adjusted , the bottle , when lowered , will displace exactly 1 cubic foot of air upon coming to rest on the bottom of the tank ...
... raised or low- ered in a tank which contains a sealing medium . With the level of the sealing medium properly adjusted , the bottle , when lowered , will displace exactly 1 cubic foot of air upon coming to rest on the bottom of the tank ...
Page 2
... raised and lowered 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 ...
... raised and lowered 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 ...
Page 4
... Raise the prover bell and set the marker at zero on the scale or read out device . If there is any noticable change ... raised to the highest position , allow it to drain for 3 minutes . Then open the prover valve and drop the bell at a ...
... Raise the prover bell and set the marker at zero on the scale or read out device . If there is any noticable change ... raised to the highest position , allow it to drain for 3 minutes . Then open the prover valve and drop the bell at a ...
Page 5
... raised position before it descends , while the rising surfaces of the other will carry adhering liquid up- ward ... raising the bottle at the end of the transfer until one or two small bubbles of air are seen to escape . 18- Cam FIGURE 4 ...
... raised position before it descends , while the rising surfaces of the other will carry adhering liquid up- ward ... raising the bottle at the end of the transfer until one or two small bubbles of air are seen to escape . 18- Cam FIGURE 4 ...
Page 10
... raise or lower their temperatures above or below that of the air in the immediate vicinity of the prover . Meter testing may be performed with the same relative degree of accuracy , at any permissible working temperature between 60 ° F ...
... raise or lower their temperatures above or below that of the air in the immediate vicinity of the prover . Meter testing may be performed with the same relative degree of accuracy , at any permissible working temperature between 60 ° F ...
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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