## Studies of calibration procedures for load cells and proving rings as weighing devicesDept. of Commerce, National Bureau of Standards; for sale by the Supt. of Docs., Govt Print. Off., 1969 - Technology & Engineering - 22 pages |

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acceleration due air density Bureau of Standards calibration data calibration procedure CELLS AND PROVING Center for Radiation Clearinghouse comparison measurement corrected dial divisions cubic foot cubic meter D.D. observed derived force direct reading application due to gravity earth's effects engineering English Units equation F is force foot per second force measurements force units hysteresis Institute for Basic instrument reading interpolating as necessary least squares load point loading rate mass in kilograms mass in pounds mass standards mass units materials research meaningful calibration newtons Newtons N numerical obtain output Potsdam pound mass poundal pounds force lbf PROCEDURES FOR LOAD proving rings random errors ratio REPORT OF CALIBRATION root mean squared second per second set of conditions standard deviation System of Units systematic error table interpolating Tare weight Technical Notes temperature and pressure transducer uncertainty unit of force value of g_ weight WSMR Calibration Laboratory