Velocity (vel.) - Dynamic NPU Manual

Velocity (vel.)

by | Jan 31, 2020 | Kind-of-quantity, List of kinds-of-property

Velocity (vel.)

Synonym

 Length rate vector

Abbreviation

 Vel.

Definition in words

 Change in position divided by time of travel

Definition by equation

Note: Position at the x-, y- and z-axis

Result type

 Rational scale
  • Value sets are positive numerical values (a=nb; a≠nb)
  • Algebraic operations are allowed
 Numerical values from 0-∞

Unit

 µm/s, mm/s, m/s, etc.

Reference

Ferard G, Dybkaer R, Fuentes-Arderiu X. Compendium of Terminology and Nomenclature of Properties in Clinical Laboratory Sciences : Recommendations 2016. 1 ed: Royal Society of Chemistry; 2016. 182 p.

Laboratory field

Example

Reproduction and Fertility

 Generic abbreviated
 NPU03997 Sem—Spermatozoa; vel.(curvilinear) = ? µm/s
Full result NPU03997 Semen—Spermatozoa; velocity(curvilinear) = 25 µm/s
Abbreviated result NPU03997 Sem—Spermatozoa; vel.(curvilinear) = 25 µm/s
Written expression The curvelinear velocity of Spermatozoa in Mr. Smith’s semen is [25] µm/s
Equation

Reference
NPU database, https://www.ifcc.org/ifcc-scientific-division/sd-committees/c-npu/npusearch/ and http://www.labterm.dk/default.aspx

 

  • Kind-of-property

    • Nominal kind-of-property

    • Kind-of-quantity

      • Unitary kind-of-quantity

        • Rational unitary kind-of-quantity

          • Velocity

Reference
  • Dybkaer R. Concept system on ‘quantity’: formation and terminology. Accredit Qual Assur. 2013;18(3):253-60.
  • Dybkaer R. ISO terminological analysis of the VIM3 concepts ‘quantity’ and ‘kind-of-quantity’. Metrologia. 2010;47(3):127-34.
Date Term Note
1996-01-01 Velocity Term established

NPU term identifier

 QU50093