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Date: | Tue, 15 May 2001 08:35:57 -0400 |
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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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