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

CERTIFIED REFERENCE MATERIAL
SE21-38
unalloyed steel

Version: 001      Date of certification: 20.08.03      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
 
  %
  %
  %
  %
  %
 
      0.1296
      0.3966
      1.040
      0.0097
      0.0009
 
      0.0002
      0.0030
      0.008
      0.0001
      0.0001
 
 5
 5
 5
 5
 5
 
1
2
2
3
4
 
  Cu
  Al
  Mo
  Ni
  Cr
 
  %
  %
  %
  %
  %
 
      0.6446
      0.0322
      0.3431
      1.176
      0.1617
 
      0.0045
      0.0001
      0.0016
      0.006
      0.0010
 
 5
 4
 5
 5
 5
 
2
2
2
2
2
 
  As
  Sn
  V
  Nb
  Ti
 
  %
  %
  %
  %
  %
 
      0.0020
      0.0007
      0.0021
      0.0191
      0.0023
 
    < 0.0001
    < 0.0001
      0.0001
      0.0003
      0.0001
 
 5
 4
 4
 5
 5
 
3
2
2
2
2
 
  Co
  Ca
  Sb
  Bi
  Pb
 
  %
  %
  %
  %
  %
 
      0.0049
      0.0017
      0.0006
    < 0.0001
      0.0001
 
    < 0.0001
    < 0.0001
    < 0.0001
      -.-
    < 0.0001
 
 5
 4
 4
 4
 4
 
2
2
2
2
2
 
  Zn
 
  %
 
      0.0001
 
    < 0.0001
 
 4
 
2
* Measuring method
1: Combustion with coulometric detection
2: Atomic absorption spectrometry
3: Photometry
4: Combustion with IR-detection