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

CERTIFIED REFERENCE MATERIAL
SX57-05
Uncover compound

Version: 003      Date of certification: 25.06.08      Sample form: Powder < 0.125 mm

Analyte Unit Certified value Confidence
interval (95%)		 No. of independent
repeated series		 Measuring
method*		 
  CaO
  SiO2
  Fe2O3
  Mn3O4
  P2O5
 
  %
  %
  %
  %
  %
 
      2.51
     76.31
      2.89
      0.263
      0.123
 
      0.02
      0.14
      0.02
      0.002
      0.003
 
 3
 3
 3
 3
 3
 
1
1
1
1
1
 
  S
  Al2O3
  MgO
  TiO2
  Na2O
 
  %
  %
  %
  %
  %
 
      0.164
      0.363
      9.60
      0.217
      0.116
 
      0.006
      0.011
      0.05
      0.004
      0.005
 
 3
 3
 3
 3
 3
 
2
1
1
1
3
 
  K2O
  C tot.
  CO2
  H2O 900°C
 
  %
  %
  %
  %
 
      0.653
      4.33
      0.265
      2.32
 
      0.006
      0.03
      0.011
      0.03
 
 3
 3
 3
 3
 
1
2
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, 1 h