Reference number
ISO 4945:1977
© ISO 2025
ISO 4945:1977
Steel — Determination of nitrogen content — Spectrophotometric method
Edition 1
1977-12
Withdrawn
Withdrawn (Edition 1, 1977)

Abstract

This method is applicable to non-alloy and low-alloy steels containing between 0.002 % (m/m) and 0.050 % (m/m) of nitrogen and less than 0.6 % (m/m) of silicon. It allows the determination only of the nitrogen content which can be converted to an ammonium salt. Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.

General information

  • Status
     : Withdrawn
    Publication date
     : 1977-12
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 6
  • Technical Committee :
    ISO/TC 17/SC 1
    ICS :
    77.080.20 
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