Blind Sample

{
  "id": "MLC-T-ENV-003434",
  "term": "Blind Sample",
  "field": "Environment",
  "definition": "1. A reference sample submitted to the analyst in such a manner that the sample is known as a reference sample but its concentration is unknown.\n\n2. A sub-sample for analysis with a composition known to the submitter. The analyst/laboratory may know the identity of the sample but not its composition. It is used to test the analyst's or laboratory's proficiency in the execution of the measurement process. {ORD} {OW/EAD} {OPP} {ORCR}\n\n3. Different types of blind samples include: Single Blind and Double Blind\n\n4. A sub-sample for analysis with a composition known to the submitter. The analyst/laboratory may know the identity of the sample but not its composition. It is used to test the analyst's or laboratory's proficiency in the execution of the measurement process. {ORD} Different types of blind samples include: Single Blind and Double Blind",
  "subject": "Policy and guidance",
  "references": [
    "Great Lakes Quality Mgmt Plan Glossary",
    "Forum on Environmental Measurements (FEM) Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/blind-sample/"
}