Scope of the Interlaboratory Proficiency Testing
Parameters
- Alkalinity
(25.0 - 400 mg/L CaCO3) - Ammonium
(0.10 - 1.50 mg/L NH4) - Bromate (1)[°]
(5.00 - 50.0 microg/L) - Calcium
(10.0 - 150 mg/L) - Chlorate (1)[°]
(50.0 - 1000 microg/L) - Chloride
(10.0 - 200 mg/L) - Chlorite (1)[°]
(50.0 - 1000 microg/L) - Conductivity (20 oC)
(100 - 1500 microS/cm) - Fluoride
(0.50 - 5.00 mg/L) - Magnesium
(2.00 - 40.0 mg/L) - Nitrate
(5.00 - 50.0 mg/L NO3)
- Nitrite
(0.10 - 2.00 mg/L NO2) - Permanganate index [°]
(1.00 - 20.0 mg/L O2) - pH (20 oC)
(6.50 – 9.50 U) - Phosphate
(1.50 - 15.0 mg/L PO4) - Potassium
(1.00 - 50.0 mg/L) - Sodium
(5.00 - 200 mg/L) - Sulphate
(10.0 - 300 mg/L SO4) - Total Dissolved Solids (Dried at 180°C) (100 - 1500 mg/L)
- Total Hardness
(5.00 - 30.0 oF ) - Total Organic Carbon (TOC) [°]
(1.00 - 20.0 mg/L C) - Turbidity [°]
(1.00 - 20.0) NTU
Proficiency test item
- 1 x 1000 mL of the test material ready to use for the determination of all parameters except Bromate, Chlorate, Chlorite, Permanganate index, TOC and Turbidity.
- 1 x 1000 mL of the test material to be prepared from a matrix and a vial of the spiking solution for the determination of Bromate.
- 1 x 1000 mL of the test material to be prepared from a matrix and a vial of the spiking solution for the determination of Chlorate and Chlorite.
- 1 x 1000 mL of the test material to be prepared from a matrix and a vial of the spiking solution for the determination of Permanganate index and TOC.
- 1 x 450 mL of the test material ready to use for the determination of Turbidity.
NOTE: All the details for the preparation of the final test sample are included in the Guide Lines of the interlaboratory proficiency testing provided with the test samples.
ADDITIONAL TEST SAMPLES: For costs and availability of additional test samples contact Qualitycheck (e-mail sales@qualitychecksrl.com)
ANALYSIS
For each measurand shall be reported one result.
proficiency testing.
