Definition: | surface adjacent to a hot functional surface
Note 1 to entry: The adjacent surface and the hot functional surface normally consist of the same piece of material, or are in direct thermal contact, and have similar thermal properties. The adjacent surface is not heated intentionally during use of the product. However, as it is adjacent to the hot functional surface and may become hot through conduction, its temperature will be in the range between the hot functional surface and a touchable surface.
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