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

CERTIFIED REFERENCE MATERIAL
SE21-39
unalloyed steel

Version: 003      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
 
  %
  %
  %
  %
  %
 
      0.151
      0.454
      1.576
      0.0117
      0.0052
 
    < 0.001
      0.004
      0.007
      0.0001
      0.0002
 
 5
 5
 5
 5
 5
 
1
2
2
3
4
 
  Cr
  Mo
  Ni
  Al lösl.
  As
 
  %
  %
  %
  %
  %
 
      0.0155
      0.0027
      0.0232
      0.0319
      0.0047
 
      0.0003
      0.0001
      0.0002
      0.0002
      0.0001
 
 5
 5
 5
 4
 5
 
2
2
2
2
3
 
  Co
  Cu
  Nb
  Pb
  Sn
 
  %
  %
  %
  %
  %
 
      0.0032
      0.0299
      0.0326
      0.0503
      0.0014
 
    < 0.0001
      0.0001
      0.0002
      0.0004
    < 0.0001
 
 5
 5
 5
 5
 4
 
2
2
2
2
2
 
  Ti
  V
  Ca
  Sb
  Zn
 
  %
  %
  %
  %
  %
 
      0.0010
      0.111
      0.0014
      0.0006
      0.0006
 
      0.0002
      0.001
    < 0.0001
    < 0.0001
    < 0.0001
 
 5
 5
 5
 5
 4
 
2
2
2
2
2
* Measuring method
1: Combustion with coulometric detection
2: Atomic absorption spectrometry
3: Photometry
4: Combustion with IR-detection