Analyte | Unit | Certified value | Confidence interval (95%) |
No. of independent repeated series |
Measuring method* |
CaO |
% |
36.30 |
0.08 |
6 |
1 |
S |
% |
0.804 |
0.017 |
9 |
1,2 |
K2O |
% |
0.462 |
0.004 |
6 |
1 |
Cr2O3 |
% |
0.021 |
0.002 |
5 |
1 |
* Measuring method | |
1: X-ray fluorescence spectrometry |
2: Combustion with IR-detection |
3: Atomic absorption spectrometry |
  |
Comment |
Thermal treatment of material before weighing: 105°C, 1 h |