Historical
IEC 61310-1 Ed. 1.0 b:1995
Safety of machinery - Indication, marking and actuation - Part 1: Requirements for visual, auditory and tactile signals
Specifies requirements for visual auditory and tactile methods of indicating safety related information. Specifies a system of colours, safety signs, markings and other warnings, intended for use for the indication of hazardous situations.
International Electrotechnical Commission [iec]