The proficiency testing studies help improve quality and comply with regulations. Order the NSI PT Express™, our on-demand proficiency testing, when you have an immediate need for proficiency test results.

These environmental chemistry wastewater proficiency tests are designed for identification of target chemicals in wastewater.

Environmental Chemistry Wastewater PT Express samples may take 7 to 10 business days to ship. If you need the samples sooner, please call NSI at 1-800-234-7837 to expedite your order.

For determination of the following elements:
Arochlor 1016: 2.0 to 10 µg/L
Arochlor 1221: 2.0 to 10 µg/L
Arochlor 1232: 2.0 to 10 µg/L
Arochlor 1242: 2.0 to 10 µg/L
Arochlor 1248: 2.0 to 10 µg/L
Arochlor 1254: 2.0 to 10 µg/L
Arochlor 1260: 2.0 to 10 µg/L
Arochlor 1262: 2.0 to 10 µg/L
Arochlor 1268: 2.0 to 10 µg/L