This document defines a data set of ink value combinations that can be used to characterize four-colour process printing. This data set is not optimized for any printing process or application area but is robust enough for all general applications. While it is primarily aimed at process colour printing with CMYK inks, it can also be used with any combination of three chromatic inks and a dark ink.

This document is an alternative to the ISO 12642‑2 data set where more neutral scale data are desired. It is not designed as a replacement for ISO 12642-2.