ISO 12958:2010 PDF

Scope: This International Standard specifies a method for determining the constant-head water flow capacity within the plane of a geotextile or geotextile-related product. NOTE 1 If the full water flow capacity characteristics of the geotextile or geotextile-related product have previously been established, then for control purposes it can be sufficient to determine the water flow capacity at two loads and both gradients. NOTE 2 The compressibility of the product over time will substantially influence the in-plane water flow capacity. Test methods for assessing the compressive creep behaviour of geotextiles or geotextile-related products are described in ISO 25619-1. The test report is judged in conjunction with the long-term compressive creep behaviour in order to assess the long-term flow capacity.

ISO 12958:2010 Referenced Document

ISO 10320 Geosynthetics — Identification on site*， 2019-02-28 Update
ISO 2854 Statistical interpretation of data; Techniques of estimation and tests relating to means and variances
ISO 5813 Water quality; Determination of dissolved oxygen; Iodometric method
ISO 9862 Geosynthetics — Sampling and preparation of test specimens*， 2023-10-01 Update
ISO 9863-1 Geosynthetics — Determination of thickness at specified pressures — Part 1: Single layers — Amendment 1*， 2019-12-04 Update

2010 ISO 12958:2010 Geotextiles and geotextile-related products - Determination of water flow capacity in their plane
1999 ISO 12958:1999 Geotextiles and geotextile-related products - Determination of water flow capacity in their plane