Mass coefficient
Definition in words |
Note 1: Coefficient can be a kind-of-quantity that is not volume or mass For the second definition, the following notes apply: Note 2: Component B is the quotient of component F and component G Note 2: Component F ≠ Component G (≠ = “not equal to”) Note 3: Component F ∉ Component G (∉ = “is not an element of”) |
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Definition by equation |
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Systematic terms
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Mass coefficient of component B in system 1 | ||
Result type |
Rational scale |
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Numerical values from 0-∞ |
Unit |
The corresponding unit depends on the chosen coefficient (denominator kind-of-quantity). The numerator unit can be µg, mg, kg, etc. For mass coefficient (mass/amount-of-substance), the corresponding unit can e.g. g/mol. |
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Special rule(s) in the NPU syntax |
The coefficient must be specified in the specification to kind-of-property. | ||
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 |
Examples |
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Clinical Chemistry |
Example 1 | |
Generic abbreviated |
NPU27281 Pt—Body; mass coefficient(mass/squared height) = ? kg/m2 | |
Full result | NPU27281 Patient—Body; mass coefficient(mass/squared height) = 24 kilogram per square meter | |
Abbreviated result | NPU27281 Pt—Body; mass coefficient(mass/squared height) = 24 kg/m2 | |
Written expression | The mass coefficient of Mr. Smith’s Body is [24] kg/m2. The calculation is the division of mass of body divided by squared height of body. | |
Equation
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Molecular Biology and Genetics |
Example 2 | |
Generic abbreviated |
NPU54759 U—Glycosaminoglycans/Creatininium; mass coefficient(mass/am.s.; proc.) = ? g/mol | |
Full result | NPU54759 Urine—Glycosaminoglycans/Creatininium; mass coefficient(mass/amount-of-substance; proc.) = 1.4 gram per mol | |
Abbreviated result | NPU54759 U—Glycosaminoglycans/Creatininium; mass coefficient(mass/am.s.; proc.) = 1.4 g/mol | |
Written expression | The mass coefficient of Mr. Smith’s Glycosaminoglycans/Creatininium in Mr. Smith’s urine is [1.4] g/mol. The calculation is the division of mass of Glycosaminoglycans divided by amount-of-substance of Creatininium. | |
Equation |
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Clinical Toxicology |
Example 3
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Generic abbreviated |
NPU29339 U—11-Nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid/Creatininium; mass coefficient(mass/am.s.; proc.) = ? mg/mol | |
Full result | NPU54757 Urine—11-Nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid/Creatininium; mass coefficient(mass/amount-of-substance; procedure) = 34 mg/mol | |
Abbreviated result | NPU29339 U—11-Nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid/Creatininium; mass coefficient(mass/am.s.; proc.) = 34 mg/mol | |
Written expression | The mass coefficient of Mr. Smith’s 11-Nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid/Creatininium in Mr. Smith’s urine is [34] mg/mol. The calculation is the division of mass of 11-Nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid divided by amount-of-substance of Creatininium. | |
Equation | ||
Reference |
NPU database, https://www.ifcc.org/ifcc-scientific-division/sd-committees/c-npu/npusearch/ and http://www.labterm.dk/default.aspx |
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Kind-of-property
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Nominal kind-of-property
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Kind-of-quantity
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Unitary kind-of-quantity
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Rational unitary kind-of-quantity
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Mass coefficient
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Reference |
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Date | Term | Note |
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2015-03-19 | Mass coefficient | Term established |
NPU term identifier |
QU80257 |