The domestic and foreign nodular graphite cast iron standard samples were analyzed with vacuum direct-readingspectrometer and were applied in the routine analysis.
运用真空直读光谱仪分析国产和国外产球墨铸铁标样，并应用在生产实践、炉前分析中；
2
This method is used in development of Nb-bearing steel and determination of controled sample of direct-readingspectrometer by furnace with fast and simple operation and accurate result.
方法被用于含铌品种钢的开发和炉前直读光谱控制样品的定值。该方法简单、快速，结果准确。
3
Carbon and sulfur in low and middle alloy steel were determined with SHIMADZU PDA - 5017 directreadingspectrometer by using the PDA (Pulse height Distribution Analysis) method.