The project contains the classification of inorganic and organic colouring materials according to colouring aspects as soon as information about the cause for the optical effect and a classification according to chemical aspects with the appropriate colour ranges. Additional the standard contains to the examples for the colouring materials the colour index.
DIN 55944:2003 history
2011DIN 55944:2011 Colouring materials - Classification according to coloristic and chemical aspects
2003DIN 55944:2003 Colouring materials - Classification according to coloristic and chemical aspects
1970DIN 55944:1990 Colouring materials - Classification according to coloristic and chemical aspects