Laboratory accredited by GAZ, (Association for the Accreditation and Certification GmbH) Attestation no. 91021

CERTIFIED REFERENCE MATERIAL
SX02-09
Cement

Version: 002      Date of certification: 09.10.07      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
  SrO
  BaO
 
  %
  %
  %
 
      1.01
      0.051
      0.028
 
    < 0.01
      0.001
      0.001
 
 3
 3
 3
 
1
1
1
* Measuring method
1: X-ray fluorescence spectrometry
2: Atomic absorption spectrometry

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