In some cooking appliances, there are some hot surfaces that may cause burn
injury and safety standards suggest putting a hot surface sign to alert
the users.

   - Is there any specific colour requirement?  Common practice is black
   colour on yellow background or white colour on black background.
   - Is an embossed sign black on black considered as a legible sign in EU
   criteria perspective?
   - In case of ink-printed label, is it put on the top of the hot surface
   or next to the hot surface?  If on the top of surface, the colours are
   protected from heat degradation and specialized adhesives should be used to
   withstand higher temperatures.  Is there any test criteria for verification?

Thanks and regards,


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