How i am going to confirm or make sure the accurate of thermocouple before i use it for measurement in experiment? Is it ok if ... I put it in ice in order to get 0 Celsius and put in boiling water to get 100 Celsius? In the idea case, i should get 0 and 100 Celsius from thermometer.. but what i should do if i got slightly different ? I don't know how to present about the error if i use it for real experiment...i need help on it...please..