{"@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\/1566","@type":"skos:Concept","skos:prefLabel":{"@language":"en-EN","@value=":"reference gas           #02369"},"skos:inScheme":"https:\/\/digilab.ptb.de\/oiml-g-18\/vocab\/","dct:created":"2022-12-19 09:13:38","skos:scopeNote":[{"@lang":"en-EN","@value":"1. Adapted from ISO 7504, 4.1 (calibration gas mixture) and 4.1.1 (reference gas mixture) and \u201cVIM\u201d, 5.13 (reference material) and 5.14 (certified reference material); 2. In the referent ISO Standards, the expression \u201ccalibration gas\u201d is generally used; 3. See also Annex B. "}],"skos:definition":[{"@lang":"en-EN","@value":"gas mixture of sufficient stability and homogeneity whose composition is properly established for use in various performance tests "}],"skos:broader":["https:\/\/digilab.ptb.de\/oiml-g-18\/vocab\/skos\/2"]}