-------------------------------------------------- Minimum Organism temperature °C -------------------------------------------------- -190 Yeast bacteria, 10 species -------------------------------------------------- -197 _Trebouxia erici_ from lichens -------------------------------------------------- -197 Protozoa, _Anguillula_ -------------------------------------------------- -252 Yeasts, molds, bacteria, 10 species -------------------------------------------------- -253 Black currant, birch -------------------------------------------------- -273 Bacteria, many species -------------------------------------------------- -273 Bacteria, many species -------------------------------------------------- -272 Desiccated rotifers -------------------------------------------------- -269 Human spermatozoa -------------------------------------------------- Table V.—_Extreme Temperature Limits of Survival_ ------------------------------------------------------------------ Maximum Organism Time of exposure temperature °C ------------------------------------------------------------------ 140 Bacterial spores 5-hr immersion ------------------------------------------------------------------ 170-200 Desiccated rotifers 5 min ------------------------------------------------------------------ 151 Desiccated rotifers 35 min ------------------------------------------------------------------ 150 _Clostridium tetani_ 180 min ------------------------------------------------------------------ 170 Aerobic bacteria, molds. 5 days at actinomycetes 6×10⁻⁹mm Hg ------------------------------------------------------------------ 127 (dry) Bacteria (in activated charcoal) 60 min ------------------------------------------------------------------ 110 (wet) _Bacillus subtilis_ var. _niger_ 400 min ------------------------------------------------------------------ 120 _Bacillus subtilis_ var. _niger_ 400 min ------------------------------------------------------------------ 141 _Bacillus subtilis_ var. _niger_ 70 min ------------------------------------------------------------------ 160 _Bacillus subtilis_ var. _niger_ 15 min ------------------------------------------------------------------ 180 _Bacillus subtilis_ var. _niger_ 2 min ------------------------------------------------------------------ 188 _Bacillus subtilis_ var. _niger_ 1 min ------------------------------------------------------------------ 120 (wet) _Bacillus stearothermophilus_ 25 min