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

CERTIFIED REFERENCE MATERIAL
SX01-01
Ca-aluminate

Version: 003      Date of certification: 01.07.10      Sample form: Powder < 0.125 mm

Analyte Unit Certified value Confidence
interval (95%)		 No. of independent
repeated series		 Measuring
method*		 
  CaO
  SiO2
  Fe2O3
  MnO
  S
 
  %
  %
  %
  %
  %
 
     26.74
      0.17
      0.118
      0.008
      0.011
 
      0.04
      0.01
      0.003
      0.001
      0.001
 
 8
10
10
 7
10
 
1
1
1
1
1,2
 
  Al2O3
  MgO
  V2O5
  Cr2O3
 
  %
  %
  %
  %
 
     72.2
      0.191
    < 0.005
      0.006
 
      0.2
      0.005
      -.-
      0.001
 
 5
 8
 6
 4
 
1
1
1
1
* Measuring method
1: X-ray fluorescence spectrometry
2: Combustion with IR-detection

Comment
Thermal treatment of material before weighing: 900°C, 1 h