Kinematic viscosity (kin.visc.) - Dynamic NPU Manual
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# Kinematic viscosity (kin.visc.)

Kin.visc.

### Definition in words

Dynamic viscosity of a fluid divided by its volumic mass (Reference 1)

Note: Volumic mass (mass density) is mass of system divided by its volume

### Systematic terms

Kinematic viscosity of system 1

### Result type

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

mm2/s, m²/s etc.

### Special rule(s) in the NPU syntax

The Celsius temperature of the measurement must be stated

### Reference

1. IUPAC Goldbook homepage. http://goldbook.iupac.org
2. 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.

### Clinical Chemistry

Example 1
Generic abbreviated form NPU03178 Pt—Plasma; kin.visc.(37 °C) = ? m2/s
Full form with a result NPU03178 Pt—Plasma; kin.visc.(37 °C) = 1.25 × 10-6 square meter per second
Abbreviated form with a result NPU03178 Pt—Plasma; kin.visc.(37 °C) = 1.25 × 10-6 m2/s
Written expression The kinetimatic viscosity of Mr. Smith’s plasma is [1.25 × 10-6m2/s. The measurement is performed at 37 °C.
Equation

Example 2
Generic abbreviated form NPU26778 Pt—Plasma; kin.visc.(37 °C) = ? mm2/s
Full form with a result NPU26778 Pt—Plasma; kin.visc.(37 °C) = 1.25 square millimeter per second
Abbreviated form with a result NPU26778 Pt—Plasma; kin.visc.(37 °C) = 1.25 mm2/s
Written expression The kinetimatic viscosity of Mr. Smith’s plasma is [1.25] mm2/s. The measurement is performed at 37 °C.
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

• ## Kind-of-quantity

### 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 Kinematic viscosity Term established

QU50087