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

CERTIFIED REFERENCE MATERIAL
SE21-93
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*		 
  C
  Si
  Mn
  P
  S
 
  %
  %
  %
  ppm
  %
 
      0.074
      0.314
      1.471
     27.3
      0.0008
 
    < 0.001
      0.001
      0.006
      0.6
      0.0002
 
12
10
10
12
 9
 
1
2
2
3
4
 
  Cr
  Mo
  Ni
  Al lösl.
  As
 
  %
  %
  %
  %
  %
 
      0.0144
      0.0668
      0.0743
      0.0396
      0.0022
 
      0.0001
      0.0004
      0.0005
      0.0006
      0.0001
 
10
10
10
10
 5
 
2
2
2
2
2
 
  Co
  Cu
  Nb
  Pb
  Sn
 
  %
  %
  %
  %
  %
 
      0.0033
      0.0463
      0.0002
    < 0.0001
      0.0056
 
      0.0001
      0.0008
    < 0.0001
      -.-
      0.0001
 
10
10
 5
 4
 4
 
2
2
2
5
5
 
  Ti
  V
  Ca
  Sb
 
  %
  %
  %
  %
 
      0.0011
      0.0329
      0.0023
      0.0006
 
    < 0.0001
      0.0003
      0.0001
    < 0.0001
 
 5
10
 4
 4
 
2
2
2
5
* Measuring method
1: Combustion with coulometric detection
2: ICP with optical emission spectrometry
3: Photometry
4: Combustion with IR-detection
5: ICP with quadrupol mass spectrometry