F
OOD AND
D
RUG
A
DMINISTRATION
O
FFICE OF
R
EGULATORY
A
FFAIRS
Office of Regulatory Science
Document Number:
ORA.007
Revision #: 02
Revised:
25 Aug 2020
Title:
Pharmaceutical Microbiology Manual
Page 25 of 92
For the most current and official copy, check QMiS.
Use materials similar in size, shape, and texture, and similarly packaged as
product under test. Replicate as nearly as possible pertinent, unusual features
that may reflect on the credibility of the sterility test.
In designing "system controls" for sterility testing, care must be taken to
duplicate the sample product for most aspects, as nearly as possible. Be
novel and innovative to meet this requirement and make the system control
meaningful.
2. Equipment Controls
All equipment items used in the analysis listed below will be controlled
individually. One item from each autoclave lot of equipment is tested in each
medium used in the test. Therefore, for a sample tested in THIO and SCD,
one item from each sterilizer load (oven or autoclave) is tested in each medium
giving a total of two controls for each forceps, syringe, etc., used in the test.
Forceps
Syringes
Scissors
Scalpels
Swabs
Pipettes
Membranes (dry, directly from the package). If membranes are sterilized in
place, this control may be omitted.
Hemostats
Other special items that may be required by a specific test.
3. Media and Rinse Fluid Controls
a. An uninoculated media and rinse fluid control are analyzed to
ensure sterility at time of use.
Alternatively, controls for these materials are accomplished as part of the
"system control" for each manifold. This will also include membrane cutters,
and other items that contact the product but cannot be individually controlled.
4. Environmental Controls
a. Open Media Controls
Tubes of each medium (THIO and SCD) used in the sterility analysis are
exposed to the immediate environment of the test (e.g., laminar flow hood) for
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