{"@context":{"dc":"http:\/\/purl.org\/dc\/elements\/1.1\/","skos":"http:\/\/www.w3.org\/2004\/02\/skos\/core#","skos:broader":{"@type":"@id"},"skos:inScheme":{"@type":"@id"},"skos:related":{"@type":"@id"},"skos:narrower":{"@type":"@id"},"skos:hasTopConcept":{"@type":"@id"},"skos:topConceptOf":{"@type":"@id"}},"@id":"https:\/\/digilab.ptb.de\/oiml-g-18\/vocab\/skos\/1454","@type":"skos:Concept","skos:prefLabel":{"@language":"en-EN","@value=":"primary national Rockwell standardizing machine           #00383"},"skos:inScheme":"https:\/\/digilab.ptb.de\/oiml-g-18\/vocab\/","dct:created":"2022-12-19 09:13:37","skos:definition":[{"@lang":"en-EN","@value":"primary Rockwell hardness standardizing machine used by a country\u2019s primary national laboratory for hardness standardization to standardize primary reference test blocks. The primary national laboratory for hardness standardization is usually a National Metrology Institute (NMI). "}],"skos:broader":["https:\/\/digilab.ptb.de\/oiml-g-18\/vocab\/skos\/2"]}