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March 2020

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Subject:
From:
Mónica Lagomarsino <[log in to unmask]>
Reply To:
The Pharmaceutical Microbiology Forum Email List <[log in to unmask]>
Date:
Wed, 4 Mar 2020 16:32:12 -0300
Content-Type:
text/plain
Parts/Attachments:
text/plain (230 lines)
Dear Abrad.

Method of microbiological test for water has not to be validated.
Monica

El mar., 3 mar. 2020 13:00, Abrar Ali <[log in to unmask]> escribió:

> Good morning!
> Referring to b/m response, I would like to know that we are using ozone in
> water system and there is UV light, so should we validated the method for
> recovery of microbes despite we are using membrane filtration method for
> water testing.
>
> Abrar
>
> ________________________________
> From: The Pharmaceutical Microbiology Forum Email List <
> [log in to unmask]> on behalf of Jeanne Moldenhauer <
> [log in to unmask]>
> Sent: Thursday, February 27, 2020 5:31 PM
> To: [log in to unmask] <
> [log in to unmask]>
> Subject: Re: [PMFLIST] Using neutralizer for Purified Water tests
>
> Another concern for the "neutralization of purified water."
>
> Are you using ozone in your water system?  If so, that may be causing your
> problem if it is not properly destructed.  Perhaps there is a problem with
> your UV light.
>
> Jeanne Moldenhauer
>
> On Wed, Feb 26, 2020 at 5:30 PM Dr. Michael J. Miller <
> [log in to unmask]> wrote:
>
> > Don, what you have stated is common industry practice. However, the
> > original poster complained they had issues with neutralization, hence my
> > question about sanitization residuals not being removed.
> >
> >
> >
> > Until the original poster responds, we will have no idea what the real
> > issue is.
> >
> >
> >
> > Michael
> >
> >
> >
> > From: The Pharmaceutical Microbiology Forum Email List <
> > [log in to unmask]> on behalf of Donald English <
> > [log in to unmask]>
> > Reply-To: The Pharmaceutical Microbiology Forum Email List <
> > [log in to unmask]>
> > Date: Wednesday, February 26, 2020 at 1:18 PM
> > To: <[log in to unmask]>
> > Subject: Re: [PMFLIST] Using neutralizer for Purified Water tests
> >
> >
> >
> > Dear Michael,
> >
> >
> >
> > If you have residuals of a disinfectant in a purified water system,  I do
> > not think that the water would still be considered as purified water.
> When
> > I had to disinfect a purified water system with a disinfectant, I had to
> > conduct rinsing of the purified water system and rinse the system until
> it
> > was free of residues of the chemical sanitizer/disinfectant.  This was
> > confirmed that the system was free of chemical disinfectant residues by
> > conducting conductivity and total organic carbon testing on samples taken
> > from the system.
> >
> >
> >
> > Regards,
> >
> > Don
> >
> >
> >
> > Donald J. English Microbiological Quality Consulting LLC
> >
> > Florham Park, New Jersey 07932
> >
> >
> >
> >
> >
> >
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> Charles River Laboratories - http://www.criver.com/
>
> Veltek Associates, Inc - http://www.sterile.com
>
> Microbiologics, Inc. - http://www.microbiologics.com
>
> BD Industrial Media - http://www.bd.com/ds/
>
> Associates of Cape Cod, Inc. - http://www.acciusa.com/
>
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> The PMFList (http://microbiologynetwork.com/pmflist.asp) is operated from
> The Microbiology Network (http://microbiologynetwork.com) and supported by
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>
>
> Steris - http://www.sterislifesciences.com/
>
> Charles River Laboratories - http://www.criver.com/
>
> Veltek Associates, Inc - http://www.sterile.com
>
> Microbiologics, Inc. - http://www.microbiologics.com
>
> BD Industrial Media - http://www.bd.com/ds/
>
> Associates of Cape Cod, Inc. - http://www.acciusa.com/
>
>
> =================================
> The nature of this service is to provide a medium for communication.  The
> specific statements and endorsements of individuals participating in the
> discussions are not necessarily those of The Microbiology Network, Inc.,
> the PMF, or the sponsors of the list.
>

------------------
The PMFList (http://microbiologynetwork.com/pmflist.asp) is operated from
The Microbiology Network (http://microbiologynetwork.com) and supported by
our sponsors as a service to the scientific community.

Please take a second to visit our sponsors' web sites and say thank you for their support of this service.
If your company would be interested in sponsoring this community, please contact [log in to unmask]



Steris - http://www.sterislifesciences.com/

Charles River Laboratories - http://www.criver.com/

Veltek Associates, Inc - http://www.sterile.com

Microbiologics, Inc. - http://www.microbiologics.com

BD Industrial Media - http://www.bd.com/ds/

Associates of Cape Cod, Inc. - http://www.acciusa.com/


=================================
The nature of this service is to provide a medium for communication.  The specific statements and endorsements of individuals participating in the discussions are not necessarily those of The Microbiology Network, Inc., the PMF, or the sponsors of the list.

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