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CERTIFIED REFERENCE MATERIAL
SX02-12
Cement

Version: 003      Date of certification: 05.09.25      Sample form: Powder < 0.100 mm
Analyte Unit Certified value Confidence
interval (95%)
No. of independent
repeated series
Measuring
method*
  Ca
SiO2
Fe2O3
Mn3O4
P2O5
  %
%
%
%
%
     46.48
21.16
3.94
0.062
0.191
      0.07
0.06
0.02
0.001
0.002
 3
3
4
4
4
1
1
1
1
1
  S
Al2O3
MgO
TiO2
Na2O
  %
%
%
%
%
      1.18
4.41
0.945
0.242
0.084
      0.03
0.02
0.005
0.001
0.002
 4
3
4
4
3
1
1
1
1
2
  K2O
Be
SrO
BaO
La
  %
%
%
%
%
      0.495
0.00013
0.086
0.0223
0.0058
      0.002
0.00001
0.002
0.0003
0.0002
 4
3
3
3
3
1
3
1
3
3
  Zr
V
Cr
Mo
Co
  %
%
%
%
%
      0.0110
0.0103
0.0074
0.00022
0.00101
      0.0004
0.0003
0.0004
0.00004
0.00001
 3
3
4
3
3
3
3
3
3
3
  Ni
Cu
Zn
Cd
In
  %
%
%
%
%
      0.0030
0.0052
0.0497
< 0.00004
< 0.00002
      0.0001
0.0001
0.0008
-.-
-.-
 4
3
5
3
3
3
3
1,3
3
3
  Tl
Pb
As
Sb
Bi
  %
%
%
%
%
    < 0.00007
0.00249
0.0048
0.00022
< 0.00005
      -.-
0.00002
0.0001
0.00002
-.-
 3
3
3
3
3
3
3
3
3
3
  Se
Te
Ce
Th
U
  %
%
%
%
%
    < 0.00029
< 0.00008
0.0052
0.00063
0.00028
      -.-
-.-
0.0002
0.00002
< 0.00001
 3
3
3
3
3
3
3
3
3
3
* Measuring method
1: X-ray fluorescence spectrometry
2: Atomic absorption spectrometry
3: ICP with high resolution mass spectrometry
 

Comment
Thermal treatment of material before weighing: 800°C, 1 h