This standard specifies the method for the determination of tungsten trioxide content in ammonium paratungstate for import and export. This standard is applicable to the determination of tungsten trioxide content in ammonium paratungstate with a tungsten trioxide content of more than 88.5%.
SN/T 0951-2010 history
2010SN/T 0951-2010 Determination of tungsten trioxide content in ammonium paratungstate for import and export
2000SN/T 0951-2000 Method for the determination of tungsten trioxide content in ammonium paratungstate for import export