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Full Description

ISO 4945:2018 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.

 

Document History

  1. ISO 4945:2018

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    Steel - Determination of nitrogen - Spectrophotometric method

    • Most Recent
  2. ISO 4945:1977


    Steel -- Determination of nitrogen content -- Spectrophotometric method

    • Historical Version