@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/GM> a skos:Concept ;
    skos:exactMatch <http://qudt.org/vocab/unit/GM-PER-M2> ;
    skos:inScheme unece:unit-of-measure ;
    skos:notation "GM" ;
    skos:prefLabel "gram per square metre"@en ;
    unece:conversionMultiplier 0.001 ;
    unece:dimensionVector "L-2 M1" ;
    unece:rec20Quantity "surface density, areic mass"@en ;
    unece:rec20Sector "Mechanics"@en ;
    unece:ucumCode "g.m-2" ;
    unece:unitSymbol "g/m²" .