Minimum Level

{
  "id": "MLC-T-ENV-017423",
  "term": "Minimum Level",
  "field": "Environment",
  "definition": "1. A minimum level at which the analytical system shall give recognizable mass spectra (background corrected) and acceptable calibration points. (see 49 FR 43234, October 26, 1984) {OW/EAD} {ORCR}\n\n2. Level at which an analytical system gives recognizable signals and an acceptable calibration point.\n\n3. The level at which the analytical system gives recognizable signals and an acceptable calibration point.\n\n4. Concentration at which the entire analytical system must give a recognizable signal and acceptable calibration point. The ML is the concentration in a sample that is equivalent to the concentration of the lowest calibration standard analyzed by a specific analytical procedure, assuming that all the method-specified sample weights, volumes and processing steps have been followed.\n\n5. The level at which the entire analytical system must give a recognizable signal and acceptable calibration point. It is equivalent to the concentration of the lowest calibration standard, assuming that all method-specified sample weights, volumes, and cleanup procedures have been employed.\n\n6. A minimum level at which the analytical system shall give recognizable mass spectra (background corrected) and acceptable calibration points. (see 49 FR 43234, October 26, 1984)",
  "abbreviation": "ML",
  "subject": "Policy and guidance",
  "references": [
    "Forum on Environmental Measurements (FEM) Glossary",
    "40 CFR 439.1 (CFR 2013)",
    "Definition truncated. For full definition and chart, see 40 CFR 430.01(CFR 2013)",
    "40 CFR 132.2 (CFR 2013)",
    "NPDES Permit Writers Glossary; NPDES Permit Writers Manual Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/minimum-level/"
}