
Scope of the Interlaboratory Proficiency Testing
The scope of this proficiency testing is the evaluation of the performance of laboratories for the determination of the metals in wastewater.

Metals
- Aluminum (Al)
(200-2000 microg/L) - Antimony (Sb)
(50-500 microg/L) - Arsenic (As)
(50-500 microg/L) - Barium (Ba)
(200-2000 microg/L) - Beryllium (Be)
(50-500 microg/L) - Boron (B)
(800-2000 microg/L) - Cadmium (Cd)
(20-200 microg/L) - Chromium (Cr)
(100-1000 microg/L)
- Chromium VI (Cr VI)
(90 - 500 microg/L) - Cobalt (Co)
(100 - 1000 microg/L) - Copper (Cu)
(100 - 1000 microg/L) - Iron (Fe)
(200 - 2000 microg/L) - Manganese (Mn)
(200 - 2000 microg/L) - Mercury (Hg)
(3 - 30 microg/L) - Molybdenum (Mo)
(50 - 500 microg/L) - Nickel (Ni)
(200 - 2000 microg/L)
- Lead (Pb)
(100 - 1000 microg/L) - Selenium (Se)
(10 - 100 microg/L) - Silver (Ag)
(100 - 1000 microg/L) - Tin (Sn)
(200 - 2000 microg/L) - Vanadium (V)
(200 - 2000 microg/L) - Zinc (Zn)
(300 - 2000 microg/L)

Proficiency test item:
- 1 x 500 mL of the test material stabilized with 2% (v/v) nitric acid ready to use for the determination of all metals except Cr VI.
- 1 x 1000 mL of the test material to be prepared from a water matrix and a vial of the spiking solution for the determination of Cr VI.
For each measurand shall be reported the result of a replica.
Request a quote
Download and complete the Application Form, selecting for each matrix, the measurands and the period in which you want to participate. Send it by email (sales@qualitychecksrl.com) or by FAX (0039 0656562874).