Round robin tests XRF-analysis Round-robin test third-party supervisor 2014 - Fly ash
Study organized by:
Materialprüfungsamtes Nordrhein-Westfalen (MPA NRW)
Material of proficiency test:
Steinkohleflugasche
Study finished:
2015 - 11
Literature:
Bericht zur Vergleichsprüfung der Fremdüberwacher 2014
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 1,140 | 1,120 | 0,090 | 0,210 |
| Na₂O-Äquivalent | 2,590 | 2,570 | 0,220 | 0,110 |
| MgO | 1,920 | 1,880 | 0,160 | 0,220 |
| Al₂O₃ | 19,770 | 19,870 | 2,420 | 0,120 |
| SiO₂ | 52,920 | 53,040 | 2,100 | 0,060 |
| P₂O5 | 0,400 | 0,430 | 0,120 | 0,230 |
| SO₃ | 1,060 | 1,100 | 0,260 | 0,130 |
| K₂O | 2,200 | 2,190 | 0,250 | 0,010 |
| CaO | 5,260 | 5,290 | 0,400 | 0,070 |
| Fe₂O₃ tot. | 11,720 | 11,400 | 0,880 | 0,360 |
| L.O.I. | 1,460 | 1,520 | 0,250 | 0,270 |
| TOC | 1,010 | 1,020 | 0,130 | 0,050 |
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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