The distillation outflow tube is submerged in a receiver with 100 ml boric acid solution as specified in point 4(d), to which three to five drops of the indicator solution as described in point 4(g) have been added.
Immerger le tube d'écoulement du distillat dans un réceptacle contenant 100 ml d'une solution d'acide borique [point 4 d)], à laquelle ont été ajoutées 3 à 5 gouttes d'indicateur [point 4 g)].