BS EN ISO 11058:2019
$142.49
Geotextiles and geotextile-related products. Determination of water permeability characteristics normal to the plane, without load
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 24 |
This document specifies two test methods for determining the water permeability characteristics of a single layer of geotextile or geotextile-related product normal to the plane: a) the constant head method; and b) the falling head method.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | European foreword Endorsement notice |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions 4 Test specimens 4.1 Handling 4.2 Selection |
| 8 | 4.3 Number and dimensions 4.4 Specimen conditions 5 Constant head method 5.1 Principle 5.2 Apparatus |
| 9 | 5.3 Procedure |
| 10 | 5.4 Calculation and expression of results 6 Falling head method 6.1 Principle |
| 11 | 6.2 Apparatus |
| 12 | 6.3 Procedure 6.4 Calculation and expression of results |
| 13 | 7 Test report |
| 17 | Annex A (informative) Determination of the correction factor, RT, to a water temperature of 20 °C |
| 19 | Annex B (normative) Relationship between head loss and flow velocity |
| 21 | Annex C (informative) Individual velocity index values for a head loss of 50 mm |
| 22 | Annex D (informative) Experimental data and calculations |
