|Celsius Temperature||Fahrenheit Temperature||2nd Degree Burn No Irreversible Damage||3rd Degree Burn Full Thickness Injury|
|45°||113°||2 hours||3 hours|
|47°||116.6°||20 minutes||45 minutes|
|48°||118.4°||15 minutes||20 minutes|
|*49°||*120°||8 minutes||10 minutes|
|51°||124°||2 minutes||4.2 minutes|
|55°||131°||17 seconds||30 seconds|
|60°||140°||3 seconds||5 seconds|
The above table shows that a person will receive a second degree burn in 3 seconds of exposure and a third degree burn in 5 seconds of exposure to water of 140°.
*The American Journal of Public Health prefers a maximum temperature of 120° for hot water.
The Consumer Product Safety Commission and the plumbing industry have published a voluntary standard which states that the maximum allowable temperature at the water outlet to the bathing area should be 120°.