Round robin tests XRF-analysis XRF Round-robin test DIFK, Bonn - PRE 72-6, Bauxite
Study organized by:
DIFK, Bonn
Material of proficiency test:
PRE 72-7, Bauxit
Study finished:
2008 - 6
Literature:
Dieser Ringversuch (Laborvergleich) dient der Validierung und Normung von Fundamentalparameter-Messprogrammen wie IQ+ oder Uniquant und der Durchführung der Messung an einem Pulverpressling.
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 0,020 | 0,010 | 0,010 | |
| MgO | 0,020 | 0,030 | 0,040 | |
| Al₂O₃ | 83,840 | 83,710 | 1,660 | |
| SiO₂ | 10,340 | 10,480 | 0,660 | |
| P₂O5 | 0,100 | 0,080 | 0,030 | |
| K₂O | 0,070 | 0,070 | 0,050 | |
| CaO | 0,040 | 0,030 | 0,020 | |
| TiO₂ | 3,700 | 3,800 | 0,370 | |
| Fe₂O₃ tot | 1,510 | 1,540 | 0,250 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
Legend
CRB
results CRB
cooperative test
results collaborative study
1s-RV
Standard deviation collaborative study
Z-Score
Difference of measured value from mean study
*
Value not certified
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