ISO 12956:2019
Geotextiles and geotextile-related products — Determination of the characteristic opening size

Standard No.

ISO 12956:2019

Release Date

2019

Published By

International Organization for Standardization (ISO)

Latest

ISO 12956:2019

Scope

This document specifies a method for the determination of the characteristic size of the openings of a single layer of a geotextile or geotextile-related product using the wet-sieving principle.

ISO 12956:2019 Referenced Document

• ISO 10320 Geosynthetics — Identification on site
• ISO 9862 Geosynthetics — Sampling and preparation of test specimens*， 2023-10-01 Update

ISO 12956:2019 history

• 2019 ISO 12956:2019 Geotextiles and geotextile-related products — Determination of the characteristic opening size
• 2010 ISO 12956:2010 Geotextiles and geotextile-related products - Determination of the characteristic opening size
• 1999 ISO 12956:1999 Geotextiles and geotextile-related products - Determination of the characteristic opening size