Symbol 5600 from IEC 60417 - Title/Meaning: Smooth floor or surface Function/description: To identify the control for marking the power (wattage) setting or the operating condition for the smooth floor or surface category.
Additional information: 
This symbol is intended to be used in conjunction with one or more of the symbols 5601, 5602, 5603 and 5604
Published in: Supplement N, 1995,3C(Central Office)191
Own work using: iso.org/obp/graphics/grs/1e6d2e25-fc08-4964-8a40-aef6d55efa97 200.png
Vectorization:  Mrmw