{
  "@type": "dcat:Dataset",
  "accessLevel": "public",
  "bureauCode": [
    "006:55"
  ],
  "contactPoint": {
    "fn": "Carolyn Burdette",
    "hasEmail": "mailto:carolyn.burdette@nist.gov"
  },
  "description": "SRM 1955a electronic files containing the certified values and uncertainties, and the data used to assign them.",
  "distribution": [
    {
      "description": "1955a Level I Certified Values and Uncertainties",
      "downloadURL": "https://data.nist.gov/od/ds/mds2-3706/1955a_Level1_CertifiedValues%20.xlsx",
      "format": "excel",
      "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
      "title": "1955a Certified Values Level I"
    },
    {
      "description": "1955a Level II Certified Values and Uncertainties",
      "downloadURL": "https://data.nist.gov/od/ds/mds2-3706/1955a_Level2_CertifiedValues.xlsx",
      "format": "excel",
      "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
      "title": "1955a Level II Certified Values"
    },
    {
      "description": "1955a Level III Certified Values and Uncertainties",
      "downloadURL": "https://data.nist.gov/od/ds/mds2-3706/1955a_Level3_CertifiedValues%20.xlsx",
      "format": "excel",
      "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
      "title": "1955a Level III Certified Values"
    },
    {
      "description": "SRM 1955a electronic readme file",
      "downloadURL": "https://data.nist.gov/od/ds/mds2-3706/1955a_Readme_2024-06-12.txt",
      "format": "text",
      "mediaType": "text/plain",
      "title": "SRM 1955a Readme file"
    }
  ],
  "identifier": "ark:/88434/mds2-3706",
  "issued": "2025-07-24",
  "keyword": [
    "clinical",
    "homocysteine",
    "human serum"
  ],
  "language": [
    "en"
  ],
  "license": "https://www.nist.gov/open/license",
  "modified": "2025-02-04 00:00:00",
  "programCode": [
    "006:045"
  ],
  "publisher": {
    "@type": "org:Organization",
    "name": "National Institute of Standards and Technology"
  },
  "theme": [
    "Chemistry:Analytical chemistry",
    "Health:Clinical diagnostics",
    "Standards:Reference materials"
  ],
  "title": "SRM 1955a Homocysteine in Frozen Human Serum Data"
}