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3M™ Petrifilm™ E.coli/Coliform Count Plates

3M™ Petrifilm™ E.coli/Coliform Count Plates
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3M™ Petrifilm™ E.coli/Coliform Count Plate identifies both E. coli and other coliforms with confirmed results within 24-48 hours. By eliminating the confirmation steps you increase productivity and reduce overall lab costs.

For achieving fast, accurate results in 24 or 48 hours, follow these three easy steps:
1) Inoculate - easy to inoculate, lift the top film and add sample
2) Incubate - designed to maximize incubator space
3) Enumerate - confirmed coliforms are red and blue colonies with associated gas bubbles. Confirmed E.coli coliforms are blue colonies with associated gas bubbles. 3M Petrifilm Plates can also be read in 4 seconds using the 3M™ Petrifilm™ Plate Reader

Find out Where to Buy our Products.

Product NameDescriptionMSDS
3M™ Petrifilm™ E. coli/Coliform Count Plates 6404 

50 plates/box, 3M™ Petrifilm™ E. coli Count Plates (EC) for Escherichia coli and coliform enumeration.


500 plates/case, 3M™ Petrifilm™ E. coli Count Plates (EC) for Escherichia coli and coliform enumeration.


3M™ Petrifilm™ E. coli/Coliform Count Plates provide the most cost-effective, convenient and reliable confirmation method for testing equipment, raw materials, food products and the manufacturing environment enabling you to monitor critical control points more frequently. The plate provides both E.coli and total coliform count information.
  • Quick and easy confirmed test results provide you with better information to make the right decisions.
  • The end result is higher quality product, better process control and an overall reduction in operational costs.
  • Increased technician labor productivity. Reduced costs.
  • A survey of 274 plants who converted to 3M™ Petrifilm™ Plates from traditional agar methods found an average labor savings of 45% and an average increased technician efficiency of 80%.

    Our full line of easy-to-use 3M Petrifilm Plates can provide you with many benefits over traditional methods:
  • Accurate results in three easy steps: inoculate, incubate and count
  • Improved efficiency
  • Reduced labor costs
  • Standardization of methodology
  • Consistent and reliable test results

    Reliability you can count on
    When you use 3M products, you gain an international partner that has the resources to support you.

  • Brochure

    3M Petrifilm Plates and Plate Reader Full Line Brochure - Brochure (PDF 1.4 MB)


    Environmental Monitoring Program Educational Bulletin - Bulletin (PDF 383.9 K)
    TB.001.01 Shipping Temperature of 3M Petrifilm Plates - Bulletin (PDF 75.7 K)
    Tech Bulletin Fluid Milk Prods_Shelf Life Prelim Incubat. Method - Bulletin (PDF 120.4 K)

    Data Sheet

    Petrifilm Plates Guide to Dilution Preparation - Data Sheet (PDF 874.9 K)
    Petrifilm Plates Sample Preparation Sheet - Data Sheet (PDF 190.7 K)


    Petrifilm E. coli/Coliform Count Plate Flyer - Flyer (PDF 979.5 K)
    Petrifilm Plates MPN Method Comparison Sheet - Flyer (PDF 975.5 K)