<prompt> Blood spill disinfection by:Isopropyl alcoholHypochloriteFormalinGlutaraldehyde  <response>: ANS. B Spauldings classification for sterilization1. Critical, e.g. heart lung machine, scalpel contact with blood2. Semicritical, e.g. endoscopes3. Noncritical, e.g. stethoscope, BP cuff, plasters.Method of sterilization1. Critical: Autoclaveethylene oxide2. Semicritical: 2 glutaraldehyde for 20 minutes3. For plastic tubes: Gamma rays 