DS DS/EN ISO 4945
DS DSEN SO 4945 2009-OCT-30 Steel - Determnaton of ntrogen content - Spectrophotometrc method
DS DSEN SO 4945 2009-OCT-30 Steel - Determnaton of ntrogen content - Spectrophotometrc method
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 can be converted to an ammonium salt.