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CERTIFIED REFERENCE MATERIAL
SE21-351
unalloyed steel

Version: 001      Date of certification: 28.04.25      Sample form: 0,200 - 400 mm
Analyte Unit Certified value Confidence
interval (95%)		 No. of independent
repeated series		 Measuring
method*		 
  C
  S
  N
     
  %
  %
  %
     
      0.0510
      0.0077
      0.0017
     
      0.0006
      0.0001
      0.0002
     
 4
 3
 3
     
1
2
3
* Measuring method
1: Combustion with coulometric detection
2: Combustion with IR-detection
3: Hot extraction with HC and IR detection