QC Check Samples for Water Supply

  • Designed for the analysis of drinking water, ground water, and clean surface water
  • Tested in compliance with appropriate US EPA, NIST, NELAC, and ISO protocols
  • Certificate of Analysis includes two sets of acceptance limits to evaluate your performance
  • Traceable to NIST SRMs (whenever available)
  • For use in analyzing alongside US EPA, NELAC or state accreditation PT samples or as part of your own internal quality control program