Ensure state and accreditation regulation compliance with proficiency testing.

• Four studies per year without order deadlines

  Convenient online reporting with PT Datalink

  Each test includes all analytes required by the TNI WS fields of testing

  Supplied in duplicate for convenience and value

Use the NSI proficiency testing (PT) studies to help improve quality and comply with regulations. There are no limits on the number of analysts or number of methods that you may report. Receive your final reports within 21 days of the study close date. These environmental chemistry drinking water proficiency tests are designed for identification of target chemicals in drinking water. If you have an immediate need for proficiency test results, PT Express™, the NSI Lab Solutions on-demand proficiency testing is available year-round.