Fetal Bovine Serum, United States Origin. Collected at government approved abattoirs in the United States. True pooled and triple 0.1 micron sterile filtered that passes sterility, mycoplasma, and 9CFR viral testing requirements. Granted a Certificate of Suitability, R0-CEP 2018-271, by the European Directorate for the Quality of Medicines (EDQM). Validated process used to gamma irradiate serum within one of two separate dose ranges: 25-40 kGy and 30-45 kGy.