BS ISO 4211-2:2013 pdf free
BS ISO 4211-2:2013 pdf free.Furniture – Tests for surface finishes – Assessment of resistance to wet heat
Immediately after conditioning, the test shall be carried out in a test atmosphere of (23±2) °C.
The test surface shall be placed horizontally. It shall accommodate the required number of tests, with at least 15 mm spacing between the perimeter of adjacent test surfaces, and between the perimeters of the test surfaces and the edges of the panel. Where tests are carried out simultaneously, the perimeters of the test surfaces shall be separated by a minimum of 50 mm. If there is any reason to suppose that the properties of the test surface may vary, two identical tests shall be carried out simultaneously.
The test surface shall be lightly wiped with a cleaning cloth (5.4) before the testing.
Using the oven (5.3), raise the temperature of the heat source to a temperature higher than the specified test temperature, and transfer it to the heat insulating foam (5.7).
Place the thermometer (5.1) or other means of measuring temperature in the centre bore of the heat source (5.2). If the temperature is not higher than the specified test temperature, the heat source shall be placed again in the oven until achieving this higher temperature.
Place the white polyamide fibre cloth (5.5) centrally on the test surface. Spread (2±0,2) cm3 of distilled or deionised water (5.6) uniformly over the whole area of the white polyamide fibre cloth.
NOTE A graduated eye dropper is suitable for dispensing the distilled or deionised water.
When the heat source reaches the specified test temperature with an accuracy of±1 °C, immediately place it on the centre of the white polyamide fibre cloth.
After 20 min in this position, remove the block.
Wipe the test surface dry with the cleaning cloth (5.4) when it has cooled.
Record the position of each test surface and its temperature.
Allow the test surface to stand undisturbed from 16h to 24 h.
Wipe each test surface with the cleaning cloth (5.4) and examine the test panel.BS ISO 4211-2 pdf download.
