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

CERTIFIED REFERENCE MATERIAL
SE21-10
unalloyed steel

Version: 003      Date of certification: 22.05.12      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
 
  %
  %
  %
  %
  %
 
      0.2035
      0.500
      1.483
      0.0186
      0.0169
 
      0.0009
      0.002
      0.005
      0.0001
      0.0003
 
12
 7
12
 5
12
 
1
2
2
3
4
 
  Cr
  Mo
  Ni
  Al lösl.
  Al unl.
 
  %
  %
  %
  %
  %
 
      0.023
      0.00249
      0.0179
      0.0385
      0.0020
 
      0.002
      0.00003
      0.0001
      0.0002
      0.0002
 
 5
 6
 5
 9
 4
 
2
2
2
2
2
 
  As
  B
  Co
  Cu
  Pb
 
  %
  %
  %
  %
  %
 
      0.0060
      0.00006
      0.0042
      0.0560
      0.00048
 
      0.0002
      0.00001
      0.0002
      0.0014
      0.00001
 
 4
 4
 4
 5
 6
 
3
3
2
2
2
 
  Sn
  Ti
  V
  Ca
  Sb
 
  %
  %
  %
  %
  %
 
      0.00178
      0.0014
      0.0019
      0.0003
      0.0008
 
      0.00002
      0.0001
      0.0002
      0.0001
    < 0.0001
 
 6
 6
 3
 4
 6
 
2
2
2
2
2
 
  Zn
 
  %
 
      0.00053
 
      0.00001
 
 6
 
2
* Measuring method
1: Combustion with coulometric detection
2: Atomic absorption spectrometry
3: Photometry
4: Combustion with IR-detection