Translations:Capacità delle boccette di inchiostro/11/en

We used two pens (a Pelikan 140 for medium to small size and a Duofold De Luxe for medium-large size) to progressively empty the bottle of ink or the inkwell under examination by repeatedly filling them. The four methods to fill the pen from the bottle defined in the following paragraph were used, weighing the remaining residue for each of them with centigram accuracy using a balance.