@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix unece: <https://test.uncefact.org/vocabulary/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://test.uncefact.org/vocabulary/unit-of-measure/C69> a skos:Concept ;
    skos:definition "A unit of subjective sound loudness. A sound has loudness p phons if it seems to the listener to be equal in loudness to the sound of a pure tone of frequency 1 kilohertz and strength p decibels."@en ;
    skos:exactMatch <http://qudt.org/vocab/unit/PHON> ;
    skos:inScheme unece:unit-of-measure ;
    skos:notation "C69" ;
    skos:prefLabel "phon"@en ;
    unece:conversionMultiplier 1.0 ;
    unece:dimensionVector "1" ;
    unece:rec20Quantity "loudness level"@en ;
    unece:rec20Sector "Acoustics"@en .