Analyte | Unit | Certified value | Confidence interval (95%) |
No. of independent repeated series |
Measuring method* |
CaO | |||||
Al2O3 | |||||
Cr2O3 |
* Measuring method | |
1: X-ray fluorescence spectrometry | 2: Combustion with IR-detection |
3: Atomic absorption spectrometry | 4: Combustion with coulometric detection |
Comment |
Thermal treatment of material before weighing: 105°C, 1 h |