C1 basis

{
  "id": "MLC-T-ENV-003894",
  "term": "C1 basis",
  "field": "Environment",
  "term_source": "C1 Basis",
  "definition": "Convention of expressing HC concentrations based on the total number of carbon atoms present, such that the C1 equivalent of a molar HC concentration equals the molar concentration multiplied by the mean number of carbon atoms in each HC molecule. For example, the C1 equivalent of 10 µmol/mol of propane (C3H8) is 30 µmol/mol. C1 equivalent molar values may be denoted as “ppmC” in the standard-setting part.",
  "subject": "Regulatory activities",
  "references": [
    "40 CFR 1065.1001 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/c1-basis/"
}