Metals and Trace Elements
- Two samples on different concentration levels
- 250 mL per sample
- Natural samples: one ground water sample, one surface water sample (partly fortified)
Details: UBA and Annual Programme 2021.
- Synthetic samples: Concentration range: µg/L-level, more details on request
- The specified standard deviations for proficiency assessment (z-score-criteria in %) and lower limits apply to synthetic samples in the year 2021
and are calculated from interlaboratory comparisons 2010-2020. At regular intervals the standard deviations are recalculated and updated.
| Parameter |
standard deviation for proficiency assessment
based on the targed value |
Lower limit |
|---|
| Aluminium |
7.9 % |
8 µg/L |
| Antimony 1) |
9.1 % |
0.15 µg/L |
| Arsenic |
7.9 % |
0.5 µg/L |
| Barium 1) |
4.6 % |
12 µg/L |
| Cadmium |
5.6 % |
0.1 µg/L |
| Cerium 1) |
4.7 % |
0.25 µg/L |
| Chromium |
6.6 % |
0.5 µg/L |
| Cobalt 1) |
6.9 % |
0.25 µg/L |
| Copper |
8.5 % |
1.0 µg/L |
| Iron |
6.8 % |
10 µg/L |
| Lead |
7.3 % |
0.3 µg/L |
| Lithium 1) |
7.3 % |
1.5 µg/L |
| Manganese |
5.4 % |
2.0 µg/L |
| Mercury |
11 % |
0.2 µg/L |
| Molybdenum 1) |
7.0 % |
0.4 µg/L |
| Nickel |
8.0 % |
1.0 µg/L |
| Selenium |
11 % |
0.3 µg/L |
| Silver 1) |
16 % |
0.05 µg/L |
| Tin 1) |
13 % |
0.5 µg/L |
| Uranium |
5.8 % |
0.35 µg/L |
| Vanadium 1) |
7.4 % |
0.3 µg/L |
| Zinc |
7.8 % |
3 µg/L |
1) extended parameter scope round M157: Ag, Ba, Ce, Co, Li, Mo, Sb, Sn and V
| Round |
Dispatch |
Organisation |
Samples |
Additional |
Closing date |
| M155 |
09.02.2021 |
UBA |
natural |
|
09.03.2021 |
| M156 |
08.03.2021 |
IFA |
synthetic |
|
09.04.2021 |
| M157 |
17.05.2021 |
IFA |
synthetic |
Ag, Ba etc. |
11.06.2021 |
| M158 |
06.09.2021 |
IFA |
synthetic |
|
01.10.2021 |
| M159 |
08.11.2021 |
IFA |
synthetic |
|
03.12.2021 |
- Contact IFA:
Uta Kachelmeier, Ing.
Phone: +43(0) 1 47654 97361
- Contact UBA:
Martha Schmid, MSc.
Phone: +43(0) 1 31304 4334
Data evaluation