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 22 of 92
For the most current and official copy, check QMiS.
with the local procedures for the proper decontamination of the
interior of the isolator.
3. Room Cleaning After Analysis
a. Remove inoculated tubes of media and all controls from the
analytical area by putting them in the pass-thru or on a stainless-
steel cart used for transporting materials in and out of the clean
room.
b. After analysis, all sample containers, equipment wrap, used
equipment and tools are to be removed from the clean room
before the analyst exits.
c. Sample containers used in the analysis should be returned to the
original outer containers for storage as part of the reserve
sample.
d. Disinfect working area before exiting the clean room.
4. Clean room disinfection and surface monitoring must be conducted
for both aerobic and anaerobic microorganisms on a routine basis.
The frequency is to be determined by the local laboratory policy.
E. Method of Analysis
1. Membrane Filtration
Follow the current edition of the USP for the amount of sample to be
tested.
2. Direct Inoculation
Follow the current edition of USP for the amount of sample and
media to be used. For example: Use 200 ml of each medium when
analyzing solid form products. If the membrane filter method is
unsuitable, certain liquids may be tested by direct inoculation
method.
3. Devices
All devices with only the pathways labeled as sterile are to be tested
by the pathway with sterile Fluid D and testing the Fluid D via
membrane filtration.
4. Incubation of Sterility Test Media
a. Incubate Fluid Thioglycollate (THIO) at 32.5 ± 2.5
o
C. Do not
shake or swirl test media during incubation or during examination
to minimize aeration of this broth.
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