GB/T 7731.14-2008 Ferrotungsten. Determination of lead content. The polarographic method and inductively coupled plasma-atomic emission spectrometry (English Version)
This part specifies the determination of lead in ferro-tungsten by polarography and inductively coupled plasma atomic emission spectrometry. This section applies to the determination of lead content in ferrotungsten. Measuring range (mass fraction): 0.001% to 0.12%. Among them, the polarographic method is suitable for the determination of the lead content of 0.001% to 0.05% by mass fraction; the inductively coupled plasma atomic emission spectrometry is suitable for the determination of the lead content of 0.010% to 0.12% by mass fraction.
GB/T 7731.14-2008 Referenced Document
GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis*, 2015-09-11 Update
GB/T 7731.14-2008 history
2008GB/T 7731.14-2008 Ferrotungsten. Determination of lead content. The polarographic method and inductively coupled plasma-atomic emission spectrometry
1988GB/T 7731.14-1988 Methods for chemical analysis of ferrotungsten--The polarographic method for the determination of lead content