“…Emission Spectrometry. Visual emission spectroscopy with a "steeloscope" has been used for cast iron analysis (348); spectrographic and spectrometric methods with various means of sample excitation have been applied to alloy steels (47,209,409,410,464,520), liquid steels and cast iron (531,532), refractory metal alloys with iron (411), high-manganese alloys (301), ferronickel (290), and to welded seams of high-alloy steels by laser microanalysis (297).…”