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

CERTIFIED REFERENCE MATERIAL
SE21-94
unalloyed steel

Version: 001      Date of certification: 04.09.07      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
 
  %
  %
  %
  %
  %
 
      0.0396
      0.2733
      1.3431
      0.0091
    < 0.0006
 
      0.0003
      0.0018
      0.0089
      0.0001
      -.-
 
43
10
14
18
34
 
1
2
2
3
4
 
  Cr
  Mo
  Ni
  Al
  As
 
  %
  %
  %
  %
  %
 
      0.0333
      0.0055
      0.0350
      0.0436
      0.0023
 
      0.0004
      0.0001
      0.0003
      0.0004
      0.0001
 
10
10
10
10
 6
 
2
2
2
5
2
 
  Co
  Cu
  Nb
  Pb
  Sn
 
  %
  %
  %
  %
  %
 
      0.0035
      0.0174
      0.0329
      0.0001
      0.0005
 
      0.0001
      0.0002
      0.0003
    < 0.0001
      0.0001
 
10
10
 6
 8
 8
 
2
2
2
2
2
 
  Ti
  V
  Ca
  Sb
  Zn
 
  %
  %
  %
  %
  %
 
      0.0017
      0.0351
      0.0010
      0.0004
      0.0004
 
      0.0001
      0.0003
      0.0001
      0.0001
    < 0.0001
 
10
10
10
 8
 8
 
2
2
2
2
2
* Measuring method
1: Combustion with coulometric detection
2: ICP with optical emission spectrometry
3: Atomic absorption spectrometry
4: Combustion with IR-detection
5: ICP with quadrupol mass spectrometry