Laboratorium
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CERTIFIED REFERENCE MATERIAL
SX02-09
Cement

Version: 003      Date of certification: 23.09.25      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
     
  %
  %
  %
  %
  %
     
     48.78
     21.95
      0.204
      0.025
      0.043
     
      0.05
      0.05
      0.004
      0.001
      0.001
     
 3
 3
 4
 4
 4
     
1
1
1
1
1
   
  S
  Al2O3
  MgO
  TiO2
  Na2O
     
  %
  %
  %
  %
  %
     
      1.19
      4.63
      0.717
      0.095
      0.078
     
      0.03
      0.01
      0.005
      0.001
      0.001
     
 5
 4
 4
 3
 3
     
1
1
1
1
2
   
  K2O
  Be
  SrO
  BaO
  La
     
  %
  %
  %
  %
  %
     
      1.01
      0.00004
      0.051
      0.028
      0.00111
     
    < 0.01
      0.00001
      0.001
      0.001
      0.00005
     
 3
 3
 3
 3
 3
     
1
3
1
1
3
   
  Zr
  V
  Cr
  Mo
  Co
     
  %
  %
  %
  %
  %
     
      0.00255
      0.00180
      0.00153
    < 0.00020
    < 0.00008
     
      0.00016
      0.00004
      0.00007
      -.-
      -.-
     
 4
 3
 3
 3
 3
     
3
3
3
3
3
   
  Ni
  Cu
  Zn
  Cd
  In
     
  %
  %
  %
  %
  %
     
      0.00075
      0.00122
      0.00130
    < 0.00004
    < 0.00003
     
      0.00015
      0.00009
      0.00029
      -.-
      -.-
     
 4
 3
 3
 3
 3
     
3
3
3
3
3
   
  Tl
  Pb
  As
  Sb
  Bi
     
  %
  %
  %
  %
  %
     
    < 0.00006
      0.00508
    < 0.00006
    < 0.00005
    < 0.00003
     
      -.-
      0.00014
      -.-
      -.-
      -.-
     
 3
 3
 3
 3
 3
     
3
3
3
3
3
   
  Se
  Te
  Ce
  Th
  U
     
  %
  %
  %
  %
  %
     
    < 0.00024
    < 0.00008
      0.00127
      0.00024
      0.00008
     
      -.-
      -.-
      0.00003
      0.00001
    < 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