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

CERTIFIED REFERENCE MATERIAL
SE21-41
unalloyed steel

Version: 002      Date of certification: 09.10.09      Sample form: Milling 0.200-1.400 mm

Analyte Unit Certified value Confidence
interval (95%)		 No. of independent
repeated series		 Measuring
method*		 
  Si
  Mn
  Nb
  Ce
 
  %
  %
  %
  %
 
      0.4575
      1.468
      0.0312
      0.0265
 
      0.0022
      0.005
      0.0003
      0.0003
 
 8
 8
 7
12
 
1
1
1
1
* Measuring method
1: Atomic absorption spectrometry