BS EN ISO 11137-2:2015 pdf free.STERILIZATION OF HEALTH CARE PRODUCTS - RADIATION - PART 2: ESTABLISHING THE STERILIZATION DOSE. BS EN ISO 11137-2:2015 specifies methods for determining the minimum dose needed to achieve a specified requirement for sterility and methods to substantiate the use of 25 kGy or 15 kGy as the sterilization dose to achieve a sterility assurance level,...