Сталь. Определение содержания азота. Спектрофотометрический метод
Название (англ.):
Steel; Determination of nitrogen content; Spectrophotometric method
Описание (англ.):
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.
CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING DETERMINATION OF CONTENT NITROGEN SPECTROPHOTOMETRIC ANALYSIS SPECTROPHOTOMETRY STEELS CHEMICAL ANALYSIS AND TESTIN