EN ISO 4945:2009
Steel - Determination of nitrogen content - Spectrophotometric method (ISO 4945:1977)

Standard No.

EN ISO 4945:2009

Release Date

2009

Published By

European Committee for Standardization (CEN)

Status

Be replaced 2018-12

Replace By

EN ISO 4945:2018

Latest

EN ISO 4945:2018

Replace

BS 6200-3.22.2:1985

Scope

This International Standard specifies a spectrophotometric method for the determination of the nitrogen content of non-alloy and low-alloy steels. This method allows the determination only of the nitrogen content which tan be converted to an ammonium salt.

EN ISO 4945:2009 history

• 2018 EN ISO 4945:2018 Steel - Determination of nitrogen - Spectrophotometric method
• 2009 EN ISO 4945:2009 Steel - Determination of nitrogen content - Spectrophotometric method (ISO 4945:1977)