Venom24 Posted November 30, 2008 Share Posted November 30, 2008 Are E.coli on petrifilm blue with gas?? If so what are the blue ones without gas?? Link to comment Share on other sites More sharing options...
scot Posted June 30, 2009 Share Posted June 30, 2009 (edited) If you are testing water, you should not expect blue bubbles without gas. If you are testing other samples, such as food or milk, these blue bubbles could be other matter that is not E.coli, as indicated in the manufacturer's instructions and guidelines. If you have more technical or specific questions, contact the 3M support line. -- Scot Frank Citizen Water http://www.CitizenWater.org Edited June 30, 2009 by scot Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now