A subcommittee of the Optical Society of America studied the visual spacing of the scales and published recommended changes in 1943. Those recommendations are called the "Munsell renotation" The recommended spacing was specified by the system of colour measurement standardised by the International Commission on illumination (identified by the initials, CIE, of its name in French), using CIE illuminant C and CIE 1931 (2°) Standard Observer. The renotation provides a method of converting colour measurement data to Munsell notations and provides the specifications for producing Munsell colour standards. The Munsell renotation was standardised by the American Society for Testing and Materials in 1)1535 standard Test Method for Specifying Colour by the Munsell System.

The Munsell colour-order system has gained international acceptance. It is described in unabridged dictionaries and encyclopaedias as well as in specialised publications on art, design, colour photography, television, printing, paint, textiles and plastics. It is recognised as a standard system of colour specification in standard Z138.2 of the American National Standards Institute; Japanese Industrial Standard for Colour, JIS Z 8721; the German Standard Colour System, DIN 6164; and several British national standards. in books and various size swatches. They make it The Munsell colour-order system has easy to communicate exact colour selections to anyone, anywhere. been widely used in many fields of colour science, most notably as a model of uniformity for calorimetric spaces and has, itself; been the subject of many scientific studies.