IEC 61496-3:2018 RLV
[Current]
Safety of machinery - Electro-sensitive protective equipment - Part 3: Particular requirements for active opto-electronic protective devices responsive to diffuse Reflection (AOPDDR)
...NOTE Figure 5 shows the results of an investigation to determine the reflectance reflectivity of
the black test piece (performed by Institut fr Arbeitsschutz (IFA), 53757 Sankt Augustin,
Germany)...
