Round robin tests XRF-analysis XRF Round-robin test solid fuels 2016 - Fly ash, DCC
Study organized by:
Materialprüfungsamtes Nordrhein-Westfalen (MPA NRW)
Material of proficiency test:
Steinkohleflugasche
Study finished:
2016 - 11
Literature:
Bericht zur Vergleichsprüfung der Fremdüberwacher 2014
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 1,250 | 1,310 | 0,146 | -0,410 |
| Al₂O₃ | 21,410 | 21,770 | 1,420 | -0,250 |
| SiO₂ | 56,590 | 56,080 | 1,200 | 0,430 |
| SO₃ | 0,880 | 0,640 | 0,065 | 3,640 |
| K₂O | 1,780 | 1,760 | 0,179 | 0,110 |
| CaO | 3,520 | 3,560 | 0,166 | -0,230 |
| Fe₂O₃ tot. | 8,550 | 8,430 | 0,313 | 0,380 |
| Feuchte | 0,130 | 0,200 | 0,070 | -1,100 |
| L.O.I. | 1,630 | 1,410 | 0,150 | 1,480 |
| TC | 0,720 | 0,720 | 0,040 | -0,090 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| Cr | 135,00 | 99,20 | 35,00 | 1,02 |
| Cu | 131,00 | 91,30 | 19,90 | 2,00 |
| Mn | 483,00 | 364,20 | 80,20 | 1,48 |
| Ni | 104,00 | 74,80 | 31,50 | 0,93 |
| Pb | 30,00 | 32,00 | 14,00 | -0,14 |
| Ti | 6243,00 | 5236,00 | 1432,50 | 0,70 |
| V | 287,00 | 215,00 | 51,60 | 1,39 |
| Zn | 301,00 | 228,70 | 79,90 | 0,91 |
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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