Direct inoculation

A sterility test method in which the product is added directly to the culture media, FTM and SCDM, and incubated for at least 14 days. It is used when the product cannot be filtered, such as some suspensions, ointments and medical devices. The product volume must not exceed 10% of the medium volume. If the product is antimicrobial, it must be neutralised or diluted enough not to inhibit growth, as shown by method suitability.