point de glace

CONT: Sous une pression normale, la température du point de fusion de la glace pure est prise comme référence du 0° de l'échelle thermométrique Celsius.
OBS: Il ne faut pas confondre le point de glace avec le point de givre ou avec le point de gelée blanche.

OBS: The ice point is frequently called the freezing point, but the latter term should be reserved for the much broader reference to the solidification of any kind of liquid under various conditions.
OBS: For pure-water substance the [freezing point] temperature is 0°C and is termed the ""ice-point"". In meteorology, the term ""freezing-point"" is often used to signify ""ice-point"". In practice, a cooling liquid may not freeze at the freezing-point because of a pressure variation from standard atmospheric pressure, or the presence of impurities, or the phenomenon of supercooling.