Thermafil GP is sterilized by:: (A) 5.25%  NaOCl for 1 min. then rinsing with 70% alcohol ., (B) 5.25% NaOCl for 30 second only, (C) 5.25% NaOCl for 1 min. then rinsed in 50% alcohol., (D) 5.25% NaOCl for 1 minute only.
Answer is A. “The Thermafiil GP carrier is disinfected with 5.25% NaOCl for 1 minute and then rinsed in 70% alcohol".