{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["006:55"], "contactPoint": {"fn": "Steven J. Choquette", "hasEmail": "mailto:srms@nist.gov"}, "description": "SRM 1635a Trace Elements in Coal (Subbituminous) - This Standard Reference Material (SRM) is intended primarily for the evaluation of techniques used in the analysis of coals and materials of a similar matrix. A unit of SRM 1635a consists of 50 g of subbituminous coal that was ground to pass a 250 \u00b5m (60 mesh) sieve, homogenized, bottled under an argon atmosphere, and sealed in an aluminized bag. This data is public in the Certificate of Analysis for this material.", "identifier": "4765EE7CC598A396E0531A57068160031629", "keyword": ["SRM", "Standard Reference Material", "coal", "sulfur", "mercury", "chlorine", "trace elements", "Energy"], "landingPage": "https://www-s.nist.gov/srmors/view_detail.cfm?srm=1635a", "language": ["en"], "license": "https://www.nist.gov/open/license", "modified": "2017-01-05 00:00:00", "programCode": ["006:052"], "publisher": {"@type": "org:Organization", "name": "National Institute of Standards and Technology"}, "theme": ["Standards:Reference materials"], "title": "SRM 1635a Trace Elements in Coal (Subbituminous)"}