PT samples have to be right. Your laboratory's accreditation is at stake, so anything less than 100% confidence is just not good enough.
That's why we are proud to offer NSI ISO 17034-accredited proficiency testing to Environmental, Food Science, and Cannabis 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 offers Proficiency Testing products for a variety of testing schemes for both quantitative and qualitative test performance.
Below are the various offerings of Proficiency Testing Standards.
Drinking Water Inorganics
Drinking Water Microbiological
Drinking Water Organics
Soils and Hazardous Waste
Our accredited PTs are also available on demand in our convenient PT Express
version. See the full study schedule by visting NSI's website