@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/1a4a8957-ba01-4929-8905-c44f76097fad> a dcat:Dataset ;
    dct:description "Speed of sound and density measurements for difluoromethane. Speed of sound was measured in the liquid phase using a dual-path pulse-echo instrument at temperatures between 230 and 345 K, with pressures from 2.1 to 70 MPa. Vapor-phase density was measured using a dual-sinker densimeter instrument at temperatures from 240 to 340 K and pressures from 0.1 to 1.61 MPa." ;
    dct:identifier "ark:/88434/mds2-2554" ;
    dct:issued "2023-01-04"^^xsd:date ;
    dct:language "{en}" ;
    dct:modified "2022-02-23T00:00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "Speed of Sound and Density of Difluoromethane" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Elizabeth Rasmussen" ;
            vcard:hasEmail <mailto:elizabeth.rasmussen@nist.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/1a4a8957-ba01-4929-8905-c44f76097fad/resource/3ae5a588-26b0-49c5-b4d3-3c763949f1ba>,
        <https://data.amerigeoss.org/dataset/1a4a8957-ba01-4929-8905-c44f76097fad/resource/5a5fa6c4-921a-451f-89bd-a89cdd4bcf74>,
        <https://data.amerigeoss.org/dataset/1a4a8957-ba01-4929-8905-c44f76097fad/resource/8a83e32e-042c-4686-82a1-6f7d5c53eaaf>,
        <https://data.amerigeoss.org/dataset/1a4a8957-ba01-4929-8905-c44f76097fad/resource/90c384bf-5884-4a52-bcb3-cb8aa415ab4e> ;
    dcat:keyword "AmeriGEO",
        "AmeriGEOSS",
        "CKAN",
        "GEO",
        "GEOSS",
        "National",
        "North America",
        "United States",
        "density",
        "dfm",
        "hfc-32",
        "low-gwp",
        "material-property",
        "r-32",
        "reference-data",
        "speed-of-sound" ;
    dcat:theme <%22Standards:Reference%20data%22>,
        <%7B%22Materials:Materials%20characterization%22>,
        <Physics:Thermodynamics%7D> .

<https://data.amerigeoss.org/dataset/1a4a8957-ba01-4929-8905-c44f76097fad/resource/3ae5a588-26b0-49c5-b4d3-3c763949f1ba> a dcat:Distribution ;
    dct:description "Propane_SOS_Data-updated.txt" ;
    dct:format "TEXT" ;
    dct:issued "2023-01-07T19:28:43.315425"^^xsd:dateTime ;
    dct:modified "2025-09-24T03:27:39.870266"^^xsd:dateTime ;
    dct:title "Propane Calibration Data" ;
    dcat:accessURL <https://data.nist.gov/od/ds/mds2-2554/Propane_SOS_Data-updated.txt> ;
    dcat:mediaType "text/plain" .

<https://data.amerigeoss.org/dataset/1a4a8957-ba01-4929-8905-c44f76097fad/resource/5a5fa6c4-921a-451f-89bd-a89cdd4bcf74> a dcat:Distribution ;
    dct:description "A readme file to accompany the data" ;
    dct:format "DOC" ;
    dct:issued "2023-01-07T19:28:43.315418"^^xsd:dateTime ;
    dct:modified "2025-09-24T03:27:39.859733"^^xsd:dateTime ;
    dct:title "README" ;
    dcat:accessURL <https://data.nist.gov/od/ds/mds2-2554/README.docx> ;
    dcat:mediaType "application/vnd.openxmlformats-officedocument.wordprocessingml.document" .

<https://data.amerigeoss.org/dataset/1a4a8957-ba01-4929-8905-c44f76097fad/resource/8a83e32e-042c-4686-82a1-6f7d5c53eaaf> a dcat:Distribution ;
    dct:description "Difluoromethane_Density_Data-updated.txt" ;
    dct:format "TEXT" ;
    dct:issued "2023-01-07T19:28:43.315421"^^xsd:dateTime ;
    dct:modified "2025-09-24T03:27:39.862758"^^xsd:dateTime ;
    dct:title "Difluoromethane Density Data" ;
    dcat:accessURL <https://data.nist.gov/od/ds/mds2-2554/Difluoromethane_Density_Data-updated.txt> ;
    dcat:mediaType "text/plain" .

<https://data.amerigeoss.org/dataset/1a4a8957-ba01-4929-8905-c44f76097fad/resource/90c384bf-5884-4a52-bcb3-cb8aa415ab4e> a dcat:Distribution ;
    dct:description "Difluoromethane_SOS_Data-updated.txt" ;
    dct:format "TEXT" ;
    dct:issued "2023-01-07T19:28:43.315424"^^xsd:dateTime ;
    dct:modified "2025-09-24T03:27:39.866053"^^xsd:dateTime ;
    dct:title "Difluoromethane Speed of Sound (SoS) Data" ;
    dcat:accessURL <https://data.nist.gov/od/ds/mds2-2554/Difluoromethane_SOS_Data-updated.txt> ;
    dcat:mediaType "text/plain" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .