Dictionary · General
Conventional quantity value
A quantity value attributed to a quantity by agreement for a given purpose — the conventional value of local gravity, or the conventional mass of a weight.
Related terms
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Systematic measurement error
The component of measurement error that in replicate measurements remains constant or varies predictably. Known systematic errors are compensated by correction.
VIM (JCGM 200:2012) 2.17
Measurement method
A generic description of the logical organization of operations used in a measurement — substitution method, differential method, null method.
VIM (JCGM 200:2012) 2.5
Measurement
The process of experimentally obtaining one or more quantity values that can reasonably be attributed to a quantity, presupposing a description of the quantity, a procedure, and calibrated equipment.
VIM (JCGM 200:2012) 2.1
Primary reference measurement procedure
A reference procedure used to obtain a result without relation to a standard for a quantity of the same kind — the route by which primary standards are realized.
VIM (JCGM 200:2012) 2.8
Measurement result
The set of quantity values attributed to a measurand together with any other available relevant information — generally a measured value with its measurement uncertainty.
VIM (JCGM 200:2012) 2.9
Random measurement error
The component of measurement error that varies unpredictably in replicate measurements, characterized by a distribution usually summarized by its standard deviation.
VIM (JCGM 200:2012) 2.19