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SATRA STM 471 Heated sandbath

STM 471 Heated sandbath image

This bath is designed to assess the heat insulating properties through the soles of safety footwear. The apparatus consists of a thermostatically-controlled hot plate covered with sand.

The footwear is placed on the hot plate so that the sand covers the featherline. A separate temperature probe, connected to a digital readout via a plug and socket arrangement, is placed inside the footwear to measure the temperature rise over a specified time.

The sandbath incorporates an illuminated power on/off switch and a temperature controller.

The digital display for the separate temperature sensing probe is also located on the control panel. The separate temperature probe is supplied with the equipment, along with a sufficient quantity of steel balls which are packed inside the footwear during the test.

A fitted mesh guard protects the operator from the heat source during testing.