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

CERTIFIED REFERENCE MATERIAL
SX02-10
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
  CaO
  SiO2
  Fe2O3
  Mn3O4
 
  %
  %
  %
  %
  %
 
     33.39
     46.72
     30.30
      1.66
      0.327
 
      0.04
      0.06
      0.07
      0.01
      0.004
 
 3
 3
 3
 4
 4
 
1
1
1
1
1
 
  P2O5
  S
  Al2O3
  MgO
  TiO2
 
  %
  %
  %
  %
  %
 
      0.066
      1.77
      9.99
      4.96
      0.421
 
      0.002
      0.05
      0.03
      0.02
      0.004
 
 4
 5
 4
 4
 4
 
1
1,2
1
1
1
 
  Na2O
  K2O
  SrO
  BaO
  V2O5
 
  %
  %
  %
  %
  %
 
      0.236
      0.541
      0.077
      0.071
      0.011
 
      0.006
      0.008
      0.001
      0.003
      0.002
 
 3
 4
 4
 4
 4
 
3
1
1
1
1
* Measuring method
1: X-ray fluorescence spectrometry
2: Combustion with IR-detection
3: Atomic absorption spectrometry
 

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