NEOGEN Colitag™ Comparator
The comparator is used alongside Colitag Presence/Absence tests for total coliforms and E. coli. If a sample is the same or more yellow than the comparator, it is positive for total coliforms. If the sample is the same or more fluorescent, it is positive for E. coli.Approvals: EPA: Federal Register/vol. 74, No. 216/Tuesday, November 10, 2009/Rules and RegulationsModified Colitag™ is US EPA approved for compliance monitoring of public water systems as required by the Total Coliform Rule.Limit of Detection: 1 cfu in a 100 mL sampleFor more information visit https://www.neogen.com/solutions/Microbiology/Colitag-Comparator