1 Prezentul standard se refer? la determinarea capacit??ii totale de schimb a cationi?ilor puternic ?i slab acizi.
2 Prin capacitate total? de schimb a cationi?ilor se ?n?elege totalitatea grupelor active cu caracter acid capabile s? participe l
STAS 9475/7-1974 history
1974STAS 9475/7-1974 ION EXCHANGERS Determination of lotal volume capacity of cation exchangers