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

CERTIFIED REFERENCE MATERIAL
SX45-01
Slide sand

Version: 001      Date of certification: 07.05.08      Sample form: Powder < 0.080 mm

Analyte Unit Certified value Confidence
interval (95%)		 No. of independent
repeated series		 Measuring
method*		 
  CaO
  SiO2
  Fe tot.
  Mn3O4
  Al2O3
 
  %
  %
  %
  %
  %
 
      0.025
     72.21
      5.14
      0.065
      4.92
 
      0.007
      0.17
      0.09
      0.003
      0.07
 
 3
 3
 3
 3
 3
 
1
1
1
1
1
 
  MgO
  TiO2
  Na2O
  K2O
  V2O5
 
  %
  %
  %
  %
  %
 
      2.40
      0.195
      0.059
      0.633
      0.102
 
      0.05
      0.002
      0.001
      0.014
      0.002
 
 3
 3
 3
 3
 3
 
1
1
2
1
1
 
  Cr2O3
  NiO
  C tot.
  H2O 900°C
 
  %
  %
  %
  %
 
     11.53
      0.053
      0.607
      0.204
 
      0.11
      0.002
      0.002
      0.016
 
 3
 3
 3
 3
 
1
1
3
4
* Measuring method
1: X-ray fluorescence spectrometry
2: Atomic absorption spectrometry
3: Combustion with IR-detection
4: Detection with IR-/ UV-absorption after combustion

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