Round robin tests XRF-analysis XRF Round-robin test ISC, RAL - Stonewool, Steinwolle
Study organized by:
Fraunhofer (ISC), Würzburg - RAL-Gütegemeinschaft, Frankfurt
Material of proficiency test:
Stonewool, Steinwolle
Study finished:
2003 - 10
Literature:
Ringversuch der Gütegemeinschaft Mineralwolle e.V. - Ergebnisse
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 2,610 | 2,423 | 0,165 | --- |
| MgO | 7,320 | 7,250 | 0,174 | --- |
| Al₂O₃ | 17,960 | 18,150 | 0,169 | --- |
| SiO₂ | 40,540 | 41,210 | 0,196 | --- |
| P₂O5 | 0,330 | 0,310 | 0,021 | --- |
| SO₃ | 0,140 | 0,158 | 0,147 | --- |
| K₂O | 1,530 | 1,541 | 0,108 | --- |
| CaO | 18,550 | 18,090 | 0,216 | --- |
| TiO₂ | 1,730 | 0,423 | 0,010 | --- |
| Fe₂O₃ tot. | 2,130 | 1,672 | 0,052 | --- |
| MnO | 0,750 | 0,646 | 0,090 | --- |
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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