piston sampler

{
  "id": "MLC-T-ENV-021080",
  "term": "piston sampler",
  "field": "Environment",
  "definition": "Sealed soil sampling tool that uses an internal piston to seal the tool while it is pushed or driven to the target zone. Once the sampling zone has been reached, the internal piston is unlocked, and the tool is driven to fill the sample barrel. The tool is removed from the ground to retrieve the sample.",
  "subject": "Land, waste and cleanup",
  "references": [
    "Underground Storage Tank Sites Guide Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/piston-sampler/"
}