Other information
39 | 44
B
A
_
TD
3
-A
R0
0
0
en
_
0
3
5
10 Other information
10.1 Explanation of terminology
Filter element
Part of the filter that ensures the retention of the particles.
Pore size
The filter's ability to retain particles and suspended matter of
a certain size range, regardless of the type of filter material.
It is defined by the upper and lower filtration fineness
Nominal flow
Flow rate at which, with a clean filter, either the pressure
loss does not exceed 50 kPa (0.5 bar) or the filter surface
loading does not exceed the maximum specified value
(whichever value is lower)
Upper filtration fineness
the number indicates the part
icle size of a material in μm
which passes through the filter under test conditions with a
mass fraction of 10%
Drinking water
Drinking water is any water that is intended to be used in the
domestic environment for drinking and all other food
preparation purposes, for personal hygiene and cleaning as
well as for cleaning objects that do not only temporarily
come into contact with foodstuffs or the human body.
Lower filtration fineness
the number indicates the particle size of a material in μm
which passes through the filter under test conditions with a
mass fraction of 90 %
