YS/T 254.5-1994 Methods for chemical analysis of beryllium concentrates-beryl The ion selective electrode method for the determination of fluorine content (English Version)
2011YS/T 254.5-2011 Methods for chemical analysis of beryllium concentrate and beryl.Part 5:Determination of fluorine content.Ion selective electrode method
1970YS/T 254.5-1994 Methods for chemical analysis of beryllium concentrates-beryl The ion selective electrode method for the determination of fluorine content