Analyte | Unit | Certified value | Confidence interval (95%) |
No. of independent repeated series |
Measuring method* |
CaO |
% |
52.90 |
0.08 |
3 |
1 |
S |
% |
0.281 |
0.003 |
5 |
1,2 |
SrO |
% |
0.032 |
0.001 |
4 |
1 |
* Measuring method | |
1: X-ray fluorescence spectrometry |
2: Combustion with IR-detection |
3: Atomic absorption spectrometry |
  |
Comment |
Thermal treatment of material before weighing: 900°C, 1 h |