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

CERTIFIED REFERENCE MATERIAL
SX16-02
Feldspar

Version: 003      Date of certification: 22.10.12      Sample form: Powder < 0.125 mm

Analyte Unit Certified value Confidence
interval (95%)		 No. of independent
repeated series		 Measuring
method*		 
  CaO
  SiO2
  Fe
  MnO
  P2O5
 
  %
  %
  %
  %
  %
 
      0.032
     66.93
      0.047
      0.001
      0.087
 
      0.009
      0.18
      0.001
    < 0.001
      0.003
 
 5
 4
 5
 3
 5
 
1
1
1
1
1
 
  Al2O3
  TiO2
  K2O
  SrO
  BaO
 
  %
  %
  %
  %
  %
 
     17.16
      0.038
     14.19
      0.036
      0.323
 
      0.04
      0.002
      0.03
      0.001
      0.003
 
 5
 4
 4
 5
 5
 
1
1
1
1
1
 
  PbO
 
  %
 
      0.012
 
      0.003
 
 3
 
1
* Measuring method
1: X-ray fluorescence spectrometry
 

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