Again, the #ISS crew is safe inside the Russian segment after an alarm indicated a coolant pressure spike. No ammonia leak confirmed.- NASA (NASA) January 14, 2015 blockquote> Canadian astronaut Кристофер Hadfield , happened more than once to the ISS, following the developments in his Twitter . He writes that the ammonia used in the station systems REFRIGERATOR and heat exchange, as is an excellent refrigerant. Such an emergency - one of the three, to the action in which the crew of the most well-prepared.
Ammonia is used for cooling through pipes & heat exchangers on the outside of Station. If it breaks through inside it is one of the big 3.- Chris Hadfield (Cmdr_Hadfield) January 14, 2015 blockquote > Currently at NASA gather information and develop further plan of action.
According to the materials The Verge .
Source: geektimes.ru/post/244236/