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Proficiency Testing

We are proud to offer NSI Lab Solutions ISO 17034 accredited proficiency testing to Environmental, Food Science, Cannabis, and Pharmaceutical Testing laboratories. Scheduled proficiency tests are available throughout the year. Past report copies and data entry are available 24/7 using the secure online PT Datalink.

Spex/NSI, in partnership with USP, now offers Proficiency Testing products for a variety of testing schemes for both quantitative and qualitative test performance. View USP Proficiency Testing Products

Below are the various offerings of Proficiency Testing Standards.

Drinking Water Inorganics
Drinking Water Microbiological
Drinking Water Organics
Food Microbiology
Soils and Hazardous Waste
Wastewater Microbiological

Our accredited PTs are also available on demand in our convenient PT Express version.