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ISO 12958-1:2020

Geotextiles and geotextile-related products — Determination of water flow capacity in their plane — Part 1: Index test ISO 12958-1:2020

Publication date:   Oct 20, 2020

General information

90.93   Standard confirmed   Mar 24, 2026

ISO

ISO/TC 221 Geosynthetics

International Standard

59.080.70   Geotextiles

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Published

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 12958:2010

NOW

PUBLISHED
ISO 12958-1:2020
90.93 Standard confirmed
Mar 24, 2026




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