This method involves placing the temperature sensors in a well mixed combination of water and ice, which will have a known temperature of 0 C. Thermometers are then adjusted as close as possible to 
(This method; involves; placing the temperature sensors in a well mixed combination of water and ice) (a well mixed combination of; will have; a known temperature of 0 C. Thermometers) (a known temperature of 0 C. Thermometers; are adjusted as close; T:then)
This method a well mixed combination of a known temperature of 0 C. Thermometers
involves will have are adjusted as close
placing the temperature sensors in a well mixed combination of water and ice
a known temperature of 0 C. Thermometers
T:then