Laboratorium
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CERTIFIED REFERENCE MATERIAL
SE21-221
unalloyed steel

Version: 001      Date of certification: 22.01.26      Sample form: Milling 0.200-1.400 mm
Analyte Unit Certified value Confidence
interval (95%)		 No. of independent
repeated series		 Measuring
method*		 
  C
  S
  N
     
  %
  %
  %
     
      0.1610
      0.0014
      0.0080
     
      0.0016
    < 0.0001
      0.0003
     
 5
 3
 4
     
1,2
2
3
* Measuring method
1: Combustion with coulometric detection
2: Combustion with IR-detection
3: Hot extraction with HC and IR detection