Bench type autoclaves have three classifications N, B and S type. N Type: Older style of sterilisation is achieved by boiling water in the chamber between 121°C/134°C and is good for sterilisation of non-wrapped solid instruments. B Type: Current best practice of sterilisation is achieved by boiling water or steam injecting into the chamber between … Continue reading Autoclave steriliser types (N,B and S)