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9-14

volume fraction

URNurn:iso:std:iso:80000:-9:ed-2:en:item:9-14

https://metanorma.github.io/isq-smart/quantities/part-9/t9-14
urn:iso:std:iso:80000:-9:ed-2:en:item:9-14

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-9:ed-2:en:item:9-14

IEC

urn:iec:std:iec:80000-9:2019:::item:9-14

Designations

ENvolume fraction

FRfraction volumique

Symbol

φ_{X}

Notation systems

Rendered

φ_{X}

AsciiMath

varphi_"X"

LaTeX

\varphi_{\text{X}}

Definition

for substance $X$ , quotient of product of amount of substance fraction $x_{X}$ (amount-of-substance fraction) of $X$ and molar volume $V_{m,X}$ (molar volume) of the pure substance $X$ at the same temperature (ISO 80000-5: Thermodynamics) and pressure (ISO 80000-4: Mechanics), and sum over all substances $i$ of products of amount-of-substance fractions $x_{i}$ (amount-of-substance fraction) of substance $i$ and their molar volumes $V_{m,i}$ (molar volume):

φ_{X} = \frac{x_{X} V_{m,X}}{\sum_{i} x_{i} V_{m, i}}

pour un constituant $X$ , quotient du produit de la fraction de quantité de matière $x_{X}$ (amount-of-substance fraction) du constituant $X$ et du volume molaire $V_{m,X}$ (molar volume) du constituant pur $X$ dans les mêmes conditions de température (ISO 80000-5: Thermodynamics) et de pression (ISO 80000-4: Mechanics), par la somme pour tous les constituants $i$ des produits des fractions de quantité de matière $x_{i}$ (amount-of-substance fraction) du constituant $i$ par leurs volumes molaires $V_{m,i}$ (molar volume):

φ_{X} = \frac{x_{X} V_{m,X}}{\sum_{i} x_{i} V_{m, i}}

Units

m \frac{l}{l}

millilitre per litre

View related quantities →

1

one

View related quantities →

Notes

Generally, the volume fraction is temperature dependent.

Decided by the 16^th^ CGPM (1979), both "l" and "L" are allowed for the symbols for the litre.

En général, la fraction volumique dépend de la température.

La 16^e^ CGPM (1979) a décidé que «l» et «L» sont autorisés comme symboles du litre.

Concept HierarchyPendrill (2024)

L⁻³L⁻³ quantitiesLevel 0 · Kind

Broader concepts

◇ L⁻³ quantities

Characterizes

● substance

Ontology
isq:Quantity smart:TermEntry

Class Hierarchy

smart:Entity smart:TermEntryisq:Quantity

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

isq:t9-14

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	9-14
skosxl:prefLabel	"volume fraction"@en
skosxl:altLabel	"varphi_"X""@en
skos:definition	for substance stem:["X"], quotient of product of amount of substance fraction stem:[x_"X"] (<<t9-13>>) of stem:["X"] and…
skos:note	Generally, the volume fraction is temperature dependent. Decided by the 16^th^ CGPM (1979), both "l" and "L" are allowe…
isq:hasUnit	ml/l (millilitre per litre)1 (one)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-9

Related Entities

isq:QuantityShape isq:part-9 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry