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

CERTIFIED REFERENCE MATERIAL
SX11-16
Iron ore

Version: 001      Date of certification: 17.09.08      Sample form: Powder < 0.100 mm

Analyte Unit Certified value Confidence
interval (95%)		 No. of independent
repeated series		 Measuring
method*		 
  CaO
  SiO2
  Fe
  Mn
  P2O5
 
  %
  %
  %
  %
  %
 
      1.149
      4.67
     64.69
      0.198
      0.058
 
      0.003
      0.03
      0.05
      0.001
      0.001
 
 4
 4
 4
 4
 4
 
1
1
1
1
1
 
  Al2O3
  MgO
  TiO2
  Na2O
  K2O
 
  %
  %
  %
  %
  %
 
      0.722
      0.400
      0.078
      0.016
      0.023
 
      0.007
      0.002
    < 0.001
      0.001
      0.001
 
 4
 4
 4
 3
 6
 
1
1
1
2
1,2
 
  V2O5
  Cr2O3
  NiO
  ZnO
  C tot.
 
  %
  %
  %
  %
  %
 
      0.009
      0.038
      0.011
      0.0010
      0.016
 
      0.001
      0.002
      0.001
      0.0001
      0.004
 
 3
 3
 3
 3
 3
 
1
1
1
2
3
 
  CO2
  H2O 900°C
 
  %
  %
 
      0.026
      0.059
 
      0.005
      0.008
 
 3
 6
 
4
5
* Measuring method
1: X-ray fluorescence spectrometry
2: Atomic absorption spectrometry
3: Combustion with IR-detection
4: Digestion by acids, coulometric detection
5: detection with IR-/ UV-absorption after combustion
 

Comment
Thermal treatment of material before weighing: 105°C, 4 h