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

CERTIFIED REFERENCE MATERIAL
SX45-07
Slide sand

Version: 004      Date of certification: 30.06.08      Sample form: Powder < 0.125 mm

Analyte Unit Certified value Confidence
interval (95%)		 No. of independent
repeated series		 Measuring
method*		 
  CaO
  SiO2
  Fe tot.
  Mn3O4
  Al2O3
 
  %
  %
  %
  %
  %
 
      0.096
     27.95
     14.51
      0.179
     11.00
 
      0.004
      0.11
      0.07
      0.011
      0.07
 
 3
 3
 3
 3
 3
 
1
1
1
1
1
 
  MgO
  TiO2
  V2O5
  Cr2O3
  WO3
 
  %
  %
  %
  %
  %
 
      7.29
      0.486
      0.270
     33.41
      0.019
 
      0.06
      0.006
      0.003
      0.19
      0.002
 
 3
 3
 3
 3
 3
 
1
1
1
1
1
 
  NiO
  CO2
  C tot.
  H2O 900°C
 
  %
  %
  %
  %
 
      0.090
      0.013
      0.326
      0.129
 
      0.001
      0.003
      0.017
      0.008
 
 3
 3
 3
 3
 
1
2
3
4
* Measuring method
1: X-ray fluorescence spectrometry
2: Digestion by acids, coulometric detection
3: Combustion with IR-detection
4: Detection with IR-/ UV-absorption after Combustion

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