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2010 - XRF Round-robin test GeoPT26, England - OPC-1, Portland Cement
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT26
Material
OPC-1, Ordinary Portland Cement)
Literature
Preliminary Report - GeoPT26 Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
MgO
2.600
2.540
0.050
Al₂O₃
4.680
4.550
0.072
SiO₂
22.200
21.850
0.275
P₂O5
0.044
0.044
0.001
S*
0.980
0.950
0.310
K₂O
0.370
0.340
0.008
CaO
63.160
62.900
0.674
TiO₂
0.340
0.318
0.008
Fe₂O₃ tot
3.270
3.190
0.054
MnO
0.410
0.404
0.009
L.O.I.*
1.090
1.230
0.370
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
As
2.00
4.60
0.30
Ba
482.00
512.00
16.00
Ce
50.00
49.00
2.20
Cr*
185.00
186.00
40.00
Cu
26.00
23.70
1.20
Ga
7.00
7.00
0.40
F*
640.00
720.00
200.00
Hf
2.50
2.10
0.20
La
70.00
26.00
1.30
Ni
94.00
87.00
3.60
Pb
9.00
7.20
0.40
Pr
12.00
6.20
0.40
Rb
20.00
14.70
0.80
Sm
3.00
5.00
0.30
Sr
130.00
118.00
4.60
V
65.00
64.00
2.70
Y
14.00
16.00
0.80
Zn
26.00
28.00
1.30
Zr
79.00
81.00
3.40
Legende
CRB
Interlaboratory test
1s-RV
Z-score
*
CRB Results
Interlaboratory Test Results
Standard Deviation Interlaboratory Test
Difference between the measured value and the average value of the interlaboratory test
Value not certified
