Description: Determination of total and fecal coliforms; Total count of heterotrophic bacteria; Determination of Escherichia coli; Determination of Salmonella sp; Determination of coliforms at 45 ° C; Determination of Listeria monocytogenes; Determination of coagulase-positive Staphylococcus; pH determination; Free residual chlorine determination; and Total chlorine determination Method: