Microsoft Word - 3M Petrifilm REC Plate OMA Manuscript 09121

ERP Methods Book

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100 CFU per plate for the total coliform count, and less than or equal to 100 blue to blue‐green  1

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CFU per plate for the E. coli  count. 

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Materials and Methods 

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Test Kit Information 

( a )  3M Petrifilm Rapid E. coli/ Coliform Count Plate. 

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( b )  Catalog Number .—6436, 6437.  

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( c )    Ordering Information .—3M Center, Food Safety Department, Bldg. 275‐5W‐05, St. 

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Paul, MN 55144‐1000, USA 1‐800‐328‐6553. 

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Test Kit Components 

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

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Additional Supplies and Reagents 

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( a )   Butterfield’s phosphate‐buffered diluent (BPBD). —FDA BAM Chapter 4.  

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( b )  Peptone salt solution (PSS). —ISO 4832:2006 and ISO 16649‐2:2001.  

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( c )  Letheen broth. —For environmental surface sampling.

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December 6, 2018