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May 2001

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Subject:
Re: Balances
From:
"Villa, Mike" <[log in to unmask]>
Reply To:
The Pharmaceutical Microbiology Mail List <[log in to unmask]>
Date:
Tue, 15 May 2001 08:35:57 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (70 lines) 
In my experience, microbiological balances for product testing are usually
fully calibrated on a monthly basis.  However, daily checks are performed at
'use ranges'.....i.e., 0.1g, 1.0g, 10g, 100g.  This also forces a check on
balance level and cleanliness.  All results are recorded in a log book of
course.
Mike Villa
Supervisor-Lab Services
Bath & Body Works
Phone - 614-856-6765
Fax - 614-856-6363


        -----Original Message-----
        From:   Brenda Cantillon [SMTP:[log in to unmask]]
        Sent:   Tuesday, May 15, 2001 7:43 AM
        To:     [log in to unmask]
        Subject:        [PMFLIST] Balances

        Does anyone have information on the pharmacoepial or GLP/GMP
requirements for
        the use of balances in microbiological testing?

        1.   frequency of calibration - daily weight checks or weight checks
only prior
        to use?
        2.   is it sufficient to use a balance internal calibration
programme or is
        there a requirement to use standard calibrated weights?
        3.   are there requirements for minimum sample weights, weighing
ranges etc.

        Thankyou


        Brenda Cantillon
        QA/QC Microbiology

        Wexport Ltd.
        Little Island, Cork, Ireland

        Phone    +353 21 354102
        Direct    +353 21 354102 - 231
        Fax    +353 21 354319
        Mobile    +353 86 8348851
        E-Mail   [log in to unmask]


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------------------
The PMFList (http://microbiol.org/PMFList_info.htm) is operated from
The Microbiology Network (http://microbiol.org) and supported by
our sponsors (http://microbiol.org/sponsor.htm) as a service to
the scientific community.

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