Diffusion And Bubble Point Test (Complete Test); Water Intrusion Test| Water Flow Test - Sartorius Stedim Biotech Sartocheck 3 plus Betriebsanleitung

Fig. 7-19 | Test parameters:
Diffusion + BP Test
Fig. 7-20 | Test parameters:
Water Intrusion Test
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7.6 Diffusion Test and Bubble-Point Test (Complete Test)
This test method is a combination of the diffusion and the B.P. tests and is
predominantly used to check the integrity of membrane filters.
Test parameters: Diffusion and Bubble Point Test
Test pressure:
Stabilization time:
Test time:
Max. diffusion:
Min BP:
Max BP:
Net volume:
Water Intrusion Test | | Water Flow Test
7.7
This test method is used exclusively to test hydrophobic gas filter elements. The
test sequence of this test method is the same as that of the Diffusion Test. However,
the Water Intrusion Test differs from the latter test in that the hydrophobic filter
element in the filter housing is flooded upstream with water to blind the filter so
that when a pressure gradient is applied, the water volume intruding into and
diffusing through the hydrophobic filter matrix per unit of time is calculated from
the pressure drop instead of the gas stream diffusing through the
membrane as in the Diffusion Test.
1. The Water Intrusion Rate: Indicates the rate calculated from the pressure drop,
test time and upstream volume (analogous to the calculation of diffusion).
2. The Water Flow Rate: Indicates the rate related to the water flow in the membrane
(Water Intrusion converted to "Water Flow").
The Water Intrusion Test is suitable for all hydrophobic systems of approx.
2
1000 cm filtration area and larger, all the way to process-scale systems.
(For a more detailed description, see Chapter 12, Appendix)
Test parameters: Water Intrusion Test
Test pressure:
Stabil. time 1:
Stabil. time 2:
Test time:
Max. WIT:
Net volume:
Remark
Stab 1 in the stabilization time before Netvolume determination. This time is needed,
in order to compact the filter system therefore to avoid misinterpretation.
Stab 1 should not set less than 3 min.
Stab 2 is the stabilization time before the water-intrusion (water-flow) measure-
ment. The stab 2 value is available in the validation guide of the filter cartridges.
The standard value is 10 min.
in mbar
in min.
in min.
in ml/min.
in mbar
in mbar
Enter or measure, if Enter: Volume in ml
in mbar
in min.
in min.
in min.
in ml/min
Enter or measure, if Enter: Volume in ml