Published
ISO 18325:2015 specifies a test method for determining the water discharge capacity of prefabricated vertical drains (PVDs), which can be used for conformance and acceptance testing.
This is an index test.
PUBLISHED
ISO 18325:2015
90.60
Close of review
Sep 3, 2026
Geosynthetics — Test method for the determination of water discharge capacity for prefabricated vertical drains
10.98 New project rejected