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 soil and hazardous waste proficiency tests are designed for identification of target chemicals in the soil and underground storage tanks (UST).

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.

Contains all of the metals listed in the NELAC required range:
Aluminum: 2500 to 25,000 mg/kg
Antimony: 80.0 to 300 mg/kg
Arsenic: 40.0 to 400 mg/kg
Barium: 100 to 1000 mg/kg
Beryllium: 40.0 to 400 mg/kg
Boron: 80.0 to 800 mg/kg
Cadmium: 40.0 to 400 mg/kg
Calcium: 1500 to 25,000 mg/kg
Chromium: 40.0 to 400 mg/kg
Cobalt: 40.0v400 mg/kg
Copper: 40.0 to 400 mg/kg
Iron: 5000 to 50,000 mg/kg
Lead: 40.0 to 400 mg/kg
Lithium: 150 to 2000 mg/kg
Magnesium: 1200 to 25,000 mg/kg
Manganese: 100 to 2000 mg/kg
Mercury: 1.00 to 35.0 mg/kg
Molybdenum: 30.0 to 300 mg/kg
Nickel: 40.0 to 500 mg/kg
Potassium: 1400 to 25,000 mg/kg
Selenium: 40.0 to 400 mg/kg
Silver: 20.0 to 100 mg/kg
Sodium: 150 to 15000 mg/kg
Strontium: 40.0 to 400 mg/kg
Thallium: 40.0 to 400 mg/kg
Tin: 50.0 to 250 mg/kg
Titanium: 100 to 400 mg/kg
Vanadium: 40.0 to 400 mg/kg
Zinc: 100 to 1000 mg/kg

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