Relative substance fraction (rel.subst.fr.)
Abbreviation |
Rel.subst.fr. | ||
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Definition in words |
Substance fraction of component B in system 1 divided by substance fraction of component B in system 2 Note: System 1 is not related to system 2 |
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Definition by equation
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Systematic terms
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Relative substance fraction of component B in system 1 | ||
Result type |
Rational scale |
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Numerical values from 0-∞ |
Unit |
10-6, 10-3, 1 (one), 103, 106, etc. The unit “1” (one) is ommited in the NPU syntax. |
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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. Doi:10.1039/9781782622451. |
Laboratory field |
Examples |
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Clinical Microbiology |
Example 1 | |
Generic abbreviated |
NPU29742 Corpus vitreum(spec.)—Toxoplasma gondii antibody(IgG/tot. IgG); rel.subst.fr.(Corpus vitreum/Plasma; proc.) = ? | |
Full result | NPU29742 Corpus vitreum(spec.)—Toxoplasma gondii antibody(Immunoglobulin G/total Immunoglobulin G); relative substance fraction(Corpus vitreum/Plasma; procedure) = 0.7 x one | |
.Abbreviated result | NPU29742 Corpus vitreum(spec.)—Toxoplasma gondii antibody(IgG/tot. IgG); rel.subst.fr.(Corpus vitreum/Plasma; proc.) = ? | |
Written expression | The relative substance fraction of Toxoplasma gondii antibody(Immunoglobulin G/total Immunoglobulin G) from Mrs. Smith’s Corpus vitreum is [0.7]. The calculation is performed by dividing the substance fraction of Toxoplasma gondii antibody(Immunoglobulin G/total Immunoglobulin G) in Mrs. Smith’s Corpus vitreum with the substance fraction of Toxoplasma gondii antibody(Immunoglobulin G/total Immunoglobulin G) in Mrs. Smith’s plasma. The measurement is performed according to procedure defined by the laboratory. | |
Equation
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Example 2 | ||
Generic abbreviated |
NPU29738 Corpus vitreum(spec.)—Herpes simplex virus antibody(IgG/tot. IgG); rel.subst.fr.(Corpus vitreum/Plasma; proc.) = ? | |
Full result | NPU29738 Corpus vitreum(spec.)—Herpes simplex virus antibody(Immunoglobulin G/total Immunoglobulin G); relative substance fraction(Corpus vitreum/Plasma; procedure) = 0.2 x one | |
Abbreviated result | NPU29738 Corpus vitreum(spec.)—Herpes simplex virus antibody(IgG/tot. IgG); rel.subst.fr.(Corpus vitreum/Plasma; proc.) = 0.2 | |
Written expression | The relative substance fraction of Herpes simplex virus antibody(Immunoglobulin G/total Immunoglobulin G) from Mrs. Smith’s Corpus vitreum is [0.2]. The calculation is performed by dividing the substance fraction of Herpes simplex virus antibody(Immunoglobulin G/total Immunoglobulin G) in Mrs. Smith’s Corpus vitreum with the substance fraction of Herpes simplex virus antibody(Immunoglobulin G/total Immunoglobulin G) in Mrs. Smith’s plasma. The measurement is performed according to procedure defined by the laboratory. | |
Equation |
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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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Relative substance fraction
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Reference |
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Date | Term | Note |
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2014-09-25 | Relative substance fraction | Term established |
NPU term identifier |
QU102223 |