# Thermal dose unit

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A '''Thermal dose unit''' ('''TDU''') is a unit of measurement used in the [oil and gas industry](/source/oil_and_gas_industry) to measure exposure to [thermal radiation](/source/thermal_radiation). It is a function of [intensity](/source/Intensity_(physics)) (power per unit area) and exposure time.<ref>{{cite web |title=Human Vulnerability to Thermal Radiation Offshore |url=http://www.hse.gov.uk/research/hsl_pdf/2004/hsl04-04.pdf |publisher=Health & Safety Laboratory |year=2007 |accessdate=2007-12-19 }}</ref>

1 TDU = 1 (kW/m<sup>2</sup>)<sup>4/3</sup>s.

==Results of exposure==

{| class="wikitable"
! colspan="2" | Level of Exposure 
! rowspan="2" width="180px"| Result
|-
! Mean
! Range
|-
| 92
| 86–103
| align="center" | Pain
|-
| 105
| 80–130
| align="center"| Threshold First Degree Burn
|-
| 290
| 240–350
| align="center"| Threshold Second Degree Burn
|-
| 1000
| 870–2600
| align="center"| Threshold Third Degree Burn
|}

==References==
{{reflist}}

Category:Units of measurement

{{Engineering-stub}}

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Adapted from the Wikipedia article [Thermal dose unit](https://en.wikipedia.org/wiki/Thermal_dose_unit) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Thermal_dose_unit?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.