The document describes several different colorimetric measures: the tristimulus values and the chromaticity for the CIE 1931 standard colorimetric system, the tristimulus values and chromaticity coordinates for the CIE 1964 standard colorimetric system, the colorimetric measures according to Helmholtz, the CIE 1964 colour spaces and the colorimetric measures for the DIN colour-system.#,,#
DIN 5033-3:1992 history
2013DIN EN ISO 11664-3:2013 Colorimetry - Part 3: CIE tristimulus values (ISO 11664-3:2012); German version EN ISO 11664-3:2013