Impact of temperature on hardness measurements on various rubbers:

While testing Synthetic rubber cots in finished product state the following factors plays very important role:

1)    Most of the R/F & S/F cots have wall thickness < 6.0 mm.

2)    If the thickness of Core is considered then the thickness of rubber layer goes further.

3)    Surface on which hardness is tested is not Flat its in constant curvature.

4)    Pressure applied will vary in each test.