{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["006:55"], "contactPoint": {"fn": "Steven J. Choquette", "hasEmail": "mailto:srms@nist.gov"}, "description": "This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of barium.  A unit of SRM 3104a consists of five 10 mL sealed borosilicate glass ampoules of an acidified aqueous solution prepared gravimetrically to contain a known mass fraction of barium.  The solution contains nitric acid at a volume fraction of approximately 1 %, which is equivalent to a concentration (molarity) of approximately 0.16 mol/L. This data is public in the Certificate of Analysis for this material.", "identifier": "4765EE7CC5D2A396E0531A57068160031687", "keyword": ["barium", "pure materials", "cations", "metals", "single element solutions", "spectrometry", "Advanced Materials"], "landingPage": "https://www-s.nist.gov/srmors/view_detail.cfm?srm=3104a", "language": ["en"], "license": "https://www.nist.gov/open/license", "modified": "2016-09-14 00:00:00", "programCode": ["006:052"], "publisher": {"@type": "org:Organization", "name": "National Institute of Standards and Technology"}, "theme": ["Standards:Reference materials"], "title": "SRM 3104a Barium (Ba) Standard Solution Lot No. 140909"}