This European Standard describes criteria forThe perception of visual danger signals inThe area that people are intended to perceive and to react to such a signal. It specifies the safety and ergonomic requirements andThe corresponding physical measurements and subjective visual check. It also provides guidance forThe design of the signals to be clearly perceived and differentiated as described in 5.3 of EN 292-2:1991.This European Standard does not apply to danger indicators:Presented in either written or pictorial form; Transmitted by data display units.This European Standard does not apply to special regulations such as those for public disaster and public transport.
EN 842:1996 history
2008EN 842:1996+A1:2008 Safety of machinery - Visual danger signals - General requirements, design and testing
1996EN 842:1996 Safety of machinery - Visual danger signals - General requirements, design and testing (Incorporates Amendment A1: 2008)