دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a precision sized micron particle material used for testing the solids stopping capability of filters.

n: an optical plummet or a theodolite equipped with a precision level. See theodolite.

the number of significant decimals expressed in a measurement.

n: the degree of conformity to each other of measurements repeated under specified conditions, irrespective of whether they are close or far from the true value.

n: a device used to determine the accuracy of a petroleum measurement meter.

n: appratus that checks the precision of petrolum gauge.

n: a small portion extracted from the total volume of material that contains the same proportions of the various flowing constituents as the total volume of liquid being transferred. The precision of extraction must be equal to or better than the method used to analyze the sample.

n: 1. the body of a tank. 2. the horizontal tank on a tank car that contains the liquid being transported. 3. the steel backing of a precision insert bearing on a bit.

n: brass of a specified density used in fabricating precision balance weights.

n: product in which spot samples from top, upper, middle, lower, and outlet agree within the precision of the laboratory tests. Similarly, in pipe- line transfers, spot samples taken at 1, 20, 50, 80, and 99 percent of the total volume agree within the precision of the laboratory tests.