temperatuuritajuri sukeldumise sügavus veetermostaati, mille temperatuur on (80 ± 5) °C ümbritseva õhu temperatuuril (25 ± 5) °C, depth of immersion in a thermostatic bath with a temperature of (80 ± 5) °C at an ambient temperature of (25 ± 5) °C, beyond which deeper immersion changes the output value by an amount corresponding to less than 0,1 K