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

CERTIFIED REFERENCE MATERIAL
SX11-18
Iron ore

Version: 004      Date of certification: 24.09.08      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
 
  %
  %
  %
  %
  %
 
      0.052
      1.56
     64.72
      0.713
      0.141
 
      0.008
      0.04
      0.04
      0.003
      0.004
 
 3
 3
 3
 3
 3
 
1
1
1
1
1
 
  S
  Al2O3
  MgO
  TiO2
  Na2O
 
  %
  %
  %
  %
  %
 
      0.009
      1.785
      0.057
      0.075
      0.014
 
      0.002
      0.015
      0.003
      0.001
      0.002
 
 3
 3
 3
 3
 3
 
2
1
1
1
3
 
  K2O
  V2O5
  ZnO
  C tot.
  CO2
 
  %
  %
  %
  %
  %
 
      0.020
      0.017
      0.005
      0.085
      0.033
 
      0.001
      0.002
    < 0.001
      0.002
      0.003
 
 6
 2
 7
 3
 3
 
1,3
1
1,3
2
4
 
  H2O 900°C
 
  %
 
      2.51
 
      0.07
 
 4
 
5
* Measuring method
1: X-ray fluorescence spectrometry
2: Combustion with IR-detection
3: Atomic absorption spectrometry
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