ISO11737-1:2018里面这句话怎么理解 If multiple test conditions are used (e.g. aerobic count from one plate and fungal count from another plate), and there are no colonies recovered, the LOD values are cumulative. For example, if the aerobe count is < 2 CFU and the fungal count is < 2 CFU, then the total count is < 4 CFU.