Beside this, how much mL ink is in a cartridge?
An average black-ink cartridge contains 8 milliliters of ink and costs about $10 which translates into a cost of $1.25 per milliliter (or more horrifyingly, $1250 per liter).
Furthermore, how long does Parker pen ink last? 3 to 5 years
Also question is, how much ink does a standard international cartridge hold?
The Nemosine converter will hold about 0.6 - 0.7ml of ink, and a standard international short cartridge holds about 0.7ml of ink.
Is refilling ink cartridges a good idea?
This can happen because the ink in refilled ink cartridges is often not of the same quality as the ink in original cartridges. It's that if you value the quality of your print, you should give refilled ink cartridges a wide berth.