The si temperature scale used in science is

Kelvin. 

The SI unit of measurement for the temperature scale used in science is the Kelvin scale. The SI or called as International System unit of measurement is the global utilization of scale to establish standardization among any other fields and sciences around the world into a coherent and comprehensible community as one body. This was designed so that everyone who is in the field can understand immediately and transcend evidential data and facts throughout the science society. SI units include, meters, kilograms, seconds and etc.   

The SI or Systeme Internationale system is the most common unit system that is used today. The SI unit for temperature is kelvin which expresses absolute temperature. The SI unit for mass is grams, that of distance or displacement is meters, and many others.