Povučen
Specifies a potentiometric method using a fluoride-ion sensitive electrode. After destillation of fluorine from the test portion in the presence of perchloric acid the distillate shall be titrated with lanthane nitrate solution. Applicable to products having a calcium fluoride content greater than 90 %.
POVUČEN
ISO 5439:1978
95.99
Povučen
3. 3. 2010.
Kalcijum-fluorid, tehnički - Određivanje sadržaja aktivnog fluora - Potenciometrjska metoda
95.99 Povučen