Published
This document specifies a method for determining the constant-head water flow capacity within the plane of a geotextile or geotextile-related product. This document describes the in-plane water flow index test, only applicable to factory-assembled products. For the in-plane water flow performance test, see ISO 12958-2.
WITHDRAWN
ISO 12958:2010
PUBLISHED
ISO 12958-1:2020
90.20
Standard under periodical review
Oct 15, 2025
Geotextiles and geotextile-related products - Determination of water flow capacity in their plane - Part 1: Index test (ISO 12958-1:2020)
60.60 Standard published
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