Information technology —
Computer graphics, image processing and environmental data representation —
Environmental Data Coding Specification (EDCS) language bindings —
Part 4: C
This part of ISO/IEC 18041 specifies the binding of the application programming interface (API) defined in ISO/IEC 18025, Information technology — Environmental Data Coding Specification (EDCS) to the C programming language.
http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_IEC_18041-4_Ed2.html