The fixed point used is the "triple point" of water, which is the pressure/temperature condition where solid, liquid, and vapor all coexist. ... The temperature of the triple point of water is defined to be exactly 273.16 kelvins (where 0 K is the absolute zero of temperature).
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The fixed point used is the "triple point" of water, which is the pressure/temperature condition where solid, liquid, and vapor all coexist. ... The temperature of the triple point of water is defined to be exactly 273.16 kelvins (where 0 K is the absolute zero of temperature).