Active , Reaffirmed Standard
Most Recent

UNE 55539-9:1994 (R2022)

SURFACE ACTIVE AGENTS. METHODS FOR PREPARATION, STANDARDIZATION AND STORAGE OF STANDARD SOLUTION TO BE USED IN VOLUMETRIC ANALYSIS OF SURFACE ACTIVE AGENTS AND FORMULATIONS CONTAINING THEM. PART 9: SOLUTION OF POTASSIUM PERMANGANATE, OF CONCENTRATION 0,02 MOL/L.