Dictionary
Off-system measurement unit
A unit that does not belong to the system of units in use — the day, the electronvolt, and the nautical mile relative to the…
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114 results for “Measurement unit”
Traceability whose stated reference is the definition of a unit through its practical realization — "traceable to the SI" in its precise sense. VIM (JCGM…
Dictionary
Measurement unit
…VIM (JCGM 200:2012) 1.9 Standards & Units
Dictionary
Base unit
A measurement unit adopted by convention for a base quantity — in the SI: second, metre, kilogram, ampere, kelvin, mole, candela. VIM (JCGM 200:2012…
Dictionary
Derived unit
A measurement unit for a derived quantity, formed as a product of powers of base units — the newton (kg·m·s⁻²) or the…
Documents
SP 330 — International System of Units
…Units (SI) United States version of the English text of the ninth edit ion (2019) of the International Bureau of Weights and Measures publication…
…NIST performs initial temperature coefficient measurements of MAP unit. 4. NIST measures MAP unit using Mueller Stokes technique. 5. NIST initializes temperature logger and…
Documents
SP 811 — Guide for the Use of SI Units
Guide for the Use of the International System of Units (SI) 72 A Federal Register Notice of July 28, 1998, [16] declares that there…
Documents
SP 250-95 — Photometric Calibrations
…The previous luminous flux unit was last realized in 1985 by goniophotometric measurements [1], and was maintained on a group of six incandescent standard…
Dictionary
Quantity
…magnitude can be assigned and expressed as a number and a reference (typically a measurement unit). VIM (JCGM 200:2012) 1.1 Standards & Units