Thermal dose unit

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A Thermal Dose Unit (TDU) is a unit of measurement used in the oil and gas industry to measure exposure to thermal radiation. It is a function of intensity (power per unit area) and exposure time.[1]

1 TDU = 1 (kW/m2)4/3s.

Results of Exposure[edit]

Level of Exposure Result
Mean Range
92 86-103 Pain
105 80-130 Threshold First Degree Burn
290 240-350 Threshold Second Degree Burn
1000 870-2600 Threshold Third Degree Burn


  1. ^ "Human Vulnerability to Thermal Radiation Offshore" (PDF). Health & Safety Laboratory. 2007. Retrieved 2007-12-19.