Interlaboratory proficiency testing organized in accordance with the standard ISO/IEC 17043:2010 - Conformity assessment — General requirements for proficiency testing.
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 physical chemical parameters in natural waters (ex. drinking water, mineral water, groundwater, etc.).
Parameters
- Alkalinity
(25 - 400 mg/L CaCO3) - Ammonium
(0.10 - 1.50 mg/L NH4) - Calcium
(10 - 150 mg/L) - Chloride
(10 - 200 mg/L) - Conductivity (20 oC)
(100 - 1500 microS/cm) - Fluoride
(0.50 - 5.00 mg/L) - Magnesium
(2 - 40 mg/L) - Nitrate
(5 - 50 mg/L NO3) - Nitrite
(0.10 - 2.00 mg/L NO2) - Permanganate index
(1 - 20 mg/L O2)
- pH (20 oC)
(6.5 – 9.5 U) - Phosphate
(1.50 - 15.0 mg/L PO4) - Potassium
(1 - 50 mg/L) - Sodium
(5 - 200 mg/L) - Sulphate
(10 - 300 mg/L SO4) - Total Dissolved Solids (Dried at 180°C) (100 - 1500 mg/L)
- Total Hardness
(5 - 30 oF ) - Total Organic Carbon (TOC)
(0.5 - 10 mg/L C) - Turbidity
(1 - 20) NTU
Proficiency test item
- 1 x 1000 mL of the test material ready to use for the determination of all parameters except 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 Permanganate index and TOC.
- 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 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 smples.
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.
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).
