What is requirement of TPA or Thermal Protective aid as per SOLAS ?

A thermal protective aid shall be made of waterproof material having a thermal conductivity of not more than 0.25 Weber Metre-Kelvin and shall be so constructed that when used to enclose a person, it shall reduce both the convective and evaporative heat loss from the wearer’s body.

(1) The thermal protective aid shall : 

  1. Cover the whole body of a person wearing a lifejacket with the exception of the face. Hands shall also be covered unless permanently attached gloves are provided ; 
  2. Be capable of being unpacked and easily donned without assistance in a survival craft or rescue boat ;
  3. Permit the wearer to remove it in the water in not more than 2 minutes if it impairs ability to swim. 

(2) The thermal protective aid shall function properly throughout an air temperature range 300 C to   200C. 



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