MEANS, METHOD AND COMPUTER PROGRAM PRODUCT FOR DETERMINING THE CONCENTRATION LEVEL OF MICROORGANISMS DURING A FLUID ANALYSIS

摘要

A locating means (10) for determining the microorganism concentration of a fluid to be analysed by means of a Petri dish, said Petri dish comprising a culture medium on which a seeding device (60) able to rotate relative to the Petri dish is fitted so as to distribute the fluid, said seeding device (60) comprising at least one point of contact, associated with a contact zone, with said culture medium, said locating means (10) comprising: a circle C1 corresponding to the circumference of the Petri dish, the circle C1 comprising a centre O and a radius RC1 corresponding to the radius of the Petri dish; a seeding line LR of length R representing the zone for inoculating the fluid on the culture medium and corresponding to a portion of the radius RC1 of the Petri dish; at least one locating zone Zn for locating the presence of microorganisms on the culture medium, said locating zone Zn being delimited by the seeding line LR and a zone boundary line LZ delimiting an identical distance d travelled on the surface of the culture medium by each point of contact of the seeding device (60) starting from the seeding line LR.