ROHRTEST-4, v. 8.8 MESSEN NORD GmbH
page 27
6.2.
Test with water / low-pressure
6.2.1. Test parameters for tests acc. to DIN EN 1610
(Water, low-pressure)
Measuring-equipment:
WATER
Materials:
no specification of this norm
Cross-sections:
Circle-form [u=3 .14 * d]
Oval or egg-form [u=3 .5 * d]
Square-form [u=4 .0 * d]
Special-forms
[Substitute-diameters calculates]
Prüfabschnitte:
1 to 3 sections of deceased material / cross-section
Tube-lengths:
1..200 m
Tube-diameters:
100..1000 mm
Following recording-borders are placed by the measuring-equipment:
Min. Loss:
about. 0.02 l/h
= 0.005 l in 15 min
Max. Loss:
about. 400 l/h
= 100.0 l in 15 min
Adjustable pressure:
0.1 .. 1.0 bar (standard = 0.5 bar)
Height-differences between measuring-equipment and pipeline must be input in the
corresponding retrieval-field "PRESSURE-SENSOR-HEIGHT" and then are
automatically taken into account at the test (0.1 bar / m).
The minimal debit-pressure at the equipment amounts bar 0.1, so that itself the
maximum height-difference like follows calculated:
Hmax = 10 * (test pressure - 0.1 bar)
If the height-difference amounts more than Hmax (at test with 0.5 cash is worth Hmax
= 4 m) between measuring-equipment and pipeline, so the location of the measuring-
equipment is to be transferred into the channel drain. The resulting height-difference
is to input in the corresponding retrieval-field "PRESSURE-SENSOR-HEIGHT" of the
software.
Pre-filling-times:
1 h to 24 h acc. to material
Allowable losses:
automatic calculation acc. to DIN EN 1610
