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

CERTIFIED REFERENCE MATERIAL
SE21-44
unalloyed steel

Version: 005      Date of certification: 03.09.07      Sample form: Milling 0.200-1.400 mm

Analyte Unit Certified value Confidence
interval (95%)		 No. of independent
repeated series		 Measuring
method*		 
  C
  Si
  Mn
  P
  S
 
  %
  %
  %
  %
  %
 
      0.080
      0.050
      0.708
      0.0120
      0.0103
 
    < 0.001
      0.001
      0.003
      0.0002
      0.0001
 
 5
 5
 5
 5
 5
 
1
2
2
3
4
 
  Cr
  Mo
  Ni
  Al lösl.
  As
 
  %
  %
  %
  %
  %
 
      0.0209
      0.0061
      0.0506
      0.0459
      0.0060
 
      0.0001
      0.0001
      0.0006
      0.0005
      0.0001
 
 4
 4
 4
 4
 5
 
2
2
2
2
3
 
  Co
  Cu
  Pb
  Sn
  Ti
 
  %
  %
  %
  %
  %
 
      0.0035
      0.0488
      0.0002
      0.0052
      0.213
 
      0.0002
      0.0003
    < 0.0001
      0.0002
      0.001
 
 4
 4
 4
 4
 5
 
2
2
2
2
2
 
  V
  Sb
  Zn
 
  %
  %
  %
 
      0.008
      0.0007
      0.0005
 
      0.001
      0.0001
    < 0.0001
 
 5
 4
 4
 
2
2
2
* Measuring method
1: Combustion with coulometric detection
2: Atomic absorption spectrometry
3: Photometry
4: Combustion with IR-detection