ISO Standards for colour ink jet printers

In 2009, the ISO/IEC (International Organization for Standardization/International Electrotechnical Commission) published the International Standard for determining the ink cartridge yield for colour inkjet printers and multifunctional devices. This standard is used to prescribe the test method that manufacturers and test labs use to determine ink jet cartridge yields.

Source: Wikipedia — ISO Standards for colour ink jet printers (CC BY-SA 4.0)