@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/7956ccf4-e8a8-4d75-b1d9-57a14095b085> a dcat:Dataset ;
    dct:description "This Standard Reference Material (SRM) is intended as a primary standard for the quantitative determination of nitrate using anion ion chromatography (IC) or other methods.  A unit of SRM 3185 consists of five 10 mL sealed borosilicate glass ampoules of solution.  The solution is prepared gravimetrically to contain a known mass fraction of nitrate dissolved in filtered (0.22 µm) water having a minimum resistivity of 18 megaohm centimeters. This data is public in the Certificate of Analysis for this material." ;
    dct:identifier "4765EE7CC5E7A396E0531A57068160031708" ;
    dct:issued "2025-11-22T20:15:19.131104"^^xsd:dateTime ;
    dct:language "{en}" ;
    dct:modified "2016-09-06T00:00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "SRM 3185 Nitrate Anion (NO3-) Standard Solution" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Steven J. Choquette" ;
            vcard:hasEmail <mailto:srms@nist.gov> ] ;
    dcat:keyword "advanced-materials",
        "amerigeo",
        "amerigeoss",
        "anion",
        "ckan",
        "geo",
        "geoss",
        "national",
        "nitrate",
        "north-america",
        "srm",
        "standard-reference-material",
        "united-states" ;
    dcat:theme <%7B%22Standards:Reference%20materials%22%7D> .

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