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

CERTIFIED REFERENCE MATERIAL
SX01-02
Ca-aluminate

Version: 002      Date of certification: 01.07.10      Sample form: Powder < 0.125 mm

Analyte Unit Certified value Confidence
interval (95%)
No. of independent
repeated series
Measuring
method*
  CaO
SiO2
Fe2O3
MnO
S
  %
%
%
%
%
     18.34
2.02
0.708
0.114
0.020
      0.08
0.03
0.007
0.002
0.001
 6
6
7
6
8
1
1
1
1
1,2
  Al2O3
MgO
TiO2
SrO
V2O5
  %
%
%
%
%
     64.30
12.54
0.165
0.024
1.48
      0.21
0.04
0.003
0.002
0.01
 4
5
5
4
7
1
1
1
1
1
  Cr2O3
  %
      0.054
      0.004
 5
1
* Measuring method
1: X-ray fluorescence spectrometry
2: Combustion with IR-detection

Comment
Thermal treatment of material before weighing: 900°C, 1 h