text: For a tube of silicone rubber with a tensile strength of 10 MPa and an 8 mm outside diameter and 2 mm thick walls. The maximum pressure may be calculated as follows:
  :Outside diameter  = 
  :Wall thickness  = 
  :Tensile strength = 10 * 1000000 &#91;Pa&#93;
  :Bursting pressure = (Tensile strength * Wall thickness * 2 / (10 * Outside diameter) ) * 10  &#91;Pa&#93;
  Gives bursting pressure of 5 MPa.
  Using a safety factor:
  :Pressure max = (Tensile strength * Wall thickness * 2 / (10 * Outer diameter) ) * 10 / Safety_factor &#91;Pa&#93;