Sterile Sterile culture medium plates for the microbiological analysis of liquid samples. Diameter 55 mm Surface 24 cm 2 Easy to use Optimal for the membrane filtration method Also well applicable for microbiological analysis of samples in general Prepared with our proven dehydrated nutrient media mixtures With detailed instructions-for-use ROTI ® Aquatest Plates are prepared culture media plates with a diameter of 55 mm. They are thus adapted to the size of membrane filters for assaying of low-germ fluids by membrane filtration method. They are also applicable for the microbiological analysis of samples in general. The germs of expected low-germ liquid samples are concentrated by membrane filtration. Afterwards, the membrane is placed on top of the medium and incubated. Using a membrane with a grid helps counting the resulting colonies. Samples which are expected to have a higher microbiological burden are prepared in a serial dilution. Afterwards, every dilution step is plated and incubated. The number of grown colonies is noted as result. ROTI ® Aquatest Plate TSC ISO 7937, ISO 11133, ISO 14189, ready-to-use, sterile, for microbiology This agar is a modification of the classical TSN Agar in which the traditional antibiotics, polymyxin and neomycin have been replaced by cycloserine. Cycloserine has been found more selective for Clostridium perfringens , and reduces the production of diffuse blackening. Not a medical device / Not an IVD product