Plastics wedge shape for use in fires has specified Shore hardness and resistance to acid for use by fire services to keep escape paths open and walkable.

摘要

The plastics wedge in sizes 65 x 35 x 13 mm and 85 x 40 x 30 mm adheres usefully to smooth floor etc surfaces to prevent slipping or loss of position in a design of high-thermal stability retaining shape and which is proof against acid attack. The wedge is for use by the fire services to keep escape routes from fire zone open etc as also in similar hazardous situations.