دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a particular measure with the highest metrological qualities in a given field. Never used directly for measurement other than for comparison with duplicate standards or reference standards. Compare secondary standard, working standard.

n: a standard die value of which is fixed by direct or indirect comparison with a primary standard or by means of a reference-value standard. Compare primary standard. working standard

n: 1. a measuring instrument intended to define, to represent physically. or to reproduce the unit of measurement of a quantity (or a multiple or submultiple of that unit) to transmit it to other measuring instruments by comparison. See also primary standard, secondary standard, working standard. 2. a prescribed set of voluntary rules. conditions. or requirements concerned with the definition of terms;classification of component;delineation of procedures;specification of dimension;construction criteria;materials;performance;design;or operations;measurement of quality and quantity in describing materials, products, systems, services, or practices;or description of fit and measurement of size.

n: a standard that is calibrated against a reference standard and is intended to verify working measuring instruments of lower accuracy. Compare primary standard, secondary standard.