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Bacteriological Testing for Microbiological Potability by Colilert SM 9223B and HPC Test Method SM 9215B

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Clarkson Price: e-mail lab@clarksonlab.net

Clarkson Catalog Number: Bacti+HPC

Manufacturer: Clarkson Laboratory

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Clarkson Service Code: Bacti + HPC

Coliform/E. coli (Present/Absent) Results in 24 Hours EPA/ELAP approved method SM 9223B

Heterotrophic Plate Count (HPC) Results in 48 Hours EPA/ELAP approved method SM 9215B

US EPA-approved, test for drinking and source waters.
International approvals include US EPA, APHA Standard Methods for Examination of Water & Waste Water AOAC, IBWA, and EBWA.
Millions of tests are run worldwide every year.

From Idexx:
View the 7 minute video of the Laboratory testing procedure:

Idexx Information and video

From NEMI:
National Environmental Methods Index
Standard Methods: 9223B

From Wikipedia:
Coliform bacteria

Escherichia Coli commonly abbreviated E-coli
Pseudomonas aeruginosa
Klebsiella pneumoniae

Pronunciations by Google Translate, click the speaker on the links below:
Escherichia Coli
Pseudomonas aeruginosa
Klebsiella pneumoniae

Presence / Absence (P/A)

Step 1.
Add reagent to sample and incubate 24 hours.

Step 2.
Read results:

Yellow / fluorescent blue under black light = E. coli coliforms present (sample on the left)
Colorless = negative, total coliforms absent (sample in the middle)
Yellow = positive, total coliforms present (sample on the right)

Learn how to run the Colilert test on the link below by watching the first 2 minutes of the Idexx video.

Additional Information

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Bacteriological Testing for Microbiological Potability by Colilert Method SM 9223B Clarkson Price: e-mail lab@clarksonlab.net Clarkson Service Code: Bacti Coliform/E. coli P/A Results in 24 Hours