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 2022.
- Synthetic samples: Concentration range: µg/L-level, more details can be found here.
- The specified standard deviations for proficiency assessment (z-score-criteria in %) and lower limits apply to synthetic samples in the year 2022
and are calculated from interlaboratory comparisons 2011-2021. At regular intervals the standard deviations are recalculated and updated.
| Parameter |
standard deviation for proficiency assessment
based on the targed value |
Lower limit |
|---|
| Aluminium |
7.8 % |
8 µg/L |
| Antimony 1) |
9.3 % |
0.15 µg/L |
| Arsenic |
7.4 % |
0.5 µg/L |
| Barium 1) |
4.9 % |
12 µg/L |
| Beryllium 1) 2) |
- |
- |
| Cadmium |
5.6 % |
0.1 µg/L |
| Cerium 1) |
5.0 % |
0.25 µg/L |
| Chromium |
6.3 % |
0.5 µg/L |
| Cobalt 1) |
6.9 % |
0.25 µg/L |
| Copper |
7.8 % |
1.0 µg/L |
| Gadolinium 1) 2) |
- |
- |
| Iron |
6.6 % |
10 µg/L |
| Lead |
6.8 % |
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 |
7.5 % |
0.9 µg/L |
| Selenium |
10 % |
0.3 µg/L |
| Silver 1) |
16 % |
0.05 µg/L |
| Tin 1) |
12 % |
0.5 µg/L |
| Uranium |
5.6 % |
0.35 µg/L |
| Vanadium 1) |
7.6 % |
0.3 µg/L |
| Zinc |
7.4 % |
3 µg/L |
1) extended parameter scope round M162: Ag, Ba, Ce, Co, Li, Mo, Sb, Sn and V as well as Be 2) and Gd 2)
2) Beryllium und gadolinium will be offered for the first time in 2022, but not in the accredited area.
It is therefore not yet possible to specify standard deviations for the suitability assessment (z-score criteria in%) and limits for these parameters.
| Round |
Dispatch |
Organisation |
Samples |
Additional |
Closing date |
| M160 |
new: 29.03.2022 ➨ |
UBA |
natural |
|
26.04.2022 |
| M161 |
07.03.2022 |
IFA |
synthetic |
|
01.04.2022 |
| M162 |
16.05.2022 |
IFA |
synthetic |
Ag, Ba etc. |
17.06.2022 |
| M163 |
05.09.2022 |
IFA |
synthetic |
|
30.09.2022 |
| M164 |
14.11.2022 |
IFA |
synthetic |
|
09.12.2022 |
➨Please note the changed dipatch date due to COVID-19.
(modification: January 12, 2022; The originally planned shipping date was February 8th, 2022)
- Contact IFA:
Uta Kachelmeier, Ing.
Phone: +43(0) 1 47654 97361
- Contact UBA:
Martha Schmid, MSc.
Phone: +43(0) 1 31304 4334
Data evaluation