1. ISO 11137-2:2013 Sterilization of health care products — Radiation — Part 2: Establishing the sterilization dose
2. ISO 11137-3 Sterilization of health care products — Radiation — Part 3: Guidance on dosimetric aspects of development validation and routine control
3. ISO 11139:2018 Sterilization of health care products — Vocabulary of terms used in sterilization and related equipment and process standards
4. NHB 5340.1A October 1968 The Microbiological Examination of Space Hardware National Aeronautics and Space Administration Washington DC 20546
5. Microbiologic Assay of Space Hardware;Favero M.;Environ. Biol. Med.,1971