Calibration Gas

{
  "id": "MLC-T-ENV-003997",
  "term": "Calibration Gas",
  "field": "Environment",
  "definition": "1. Standard reference material\n\n2. Standard reference material-equivalent compressed gas primary reference material\n\n3. Purified gas mixture used to calibrate gas analyzers. Calibration gases must meet the specifications of § 1065.750. Note that calibration gases and span gases are qualitatively the same, but differ in terms of their primary function. Various performance verification checks for gas analyzers and sample handling components might refer to either calibration gases or span gases.\n\n4. NIST/EPA-approved certified reference materials\n\n5. Gas manufacturer's intermediate standard\n\n6. EPA protocol gas\n\n7. NIST traceable reference material\n\n8. Zero air material\n\n9. Research gas mixture.\n\n10. Gas of known concentration which is used to establish the response curve of an analyzer. [40 CFR 86.082-2 (CFR 2018)]",
  "references": [
    "40 CFR 72.2 (CFR 2013)",
    "40 CFR 1065.1001 (CFR 2013)",
    "40 CFR 86.1803-01 (CFR 2018)"
  ],
  "url": "https://mlchart.com/terminology/environment/calibration-gas/"
}