The operating temperature in an ethylene oxide sterilization during a warm cycle is -: (A) 20-35 o C, (B) 49-63 o C, (C) 68-88 o C, (D) 92-110 o C
Answer is B. Temperature between 49 & 63degC is used, which is comparatively a lower temperature. Used for aicles that cannot withstand higher temperatures. REF:textbook of microbiology, Ananthanarayan and Paniker.