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

CERTIFIED REFERENCE MATERIAL
SE21-06
unalloyed steel

Version: 002      Date of certification: 10.07.08      Sample form: Milling 0.200-1.400 mm

Analyte Unit Certified value Confidence
interval (95%)		 No. of independent
repeated series		 Measuring
method*		 
  C
  S
  N
 
  %
  %
  %
 
      0.1406
      0.0277
      0.0063
 
      0.0003
      0.0006
      0.0002
 
 3
 3
 3
 
1
2
3
* Measuring method
1: Combustion with coulometric detection
2: Combustion with IR-detection
3: Hot extraction with HC and IR detection