6 | Operation
HYDAC FILTER SYSTEMS GMBH
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BeWa CTM-EF3x3x 4436386 en-us lq
6.4 Labeling the filter membrane
Label the filter membranes that you have just removed using a clear and logical
system. For example:
xyz-1-A-005
Tab. 12: Example - Marking of filter membranes
Marking
Description
XYZ
Running test item series/running test item lot
1
Number of the filter membranes provided
A
When several flushing procedures are carried out
on a test item A, B, C …,
Z for the establishment of the negative control value
for the filter membrane
005
Rating of the filter membrane
005 = 5 µm
010 = 10 µm
100 = 100 µm