BS EN ISO 12956 is an International Standard which 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.
Contents of BS EN ISO 12956:
Foreword
1 Scope
2 Normative references
3 Symbols
4 Principle
5 Apparatus and materials
6 Test specimens
6.1 Handling
6.2 Selection
6.3 Number and dimensions
6.4 Specimen condition
7 Procedure
8 Calculation and expression of results
9 Test report
Annex A (normative) Mesh sizes
Annex B (informative) Example of the determination of the characteristic opening size
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
BS EN ISO 11058:2010 Geotextiles and geotextile-related products. Determination of water permeability characteristics normal to the plane, without load
BS EN ISO 11058 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;
b) The falling head method.
If the full permeability characteristics of the geotextile or geotextile-related product have previously been established, then for control purposes it can be sufficient to determine the velocity index at a head loss of 50 mm only.
Contents of BS EN ISO 11058:
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Test specimens
4.1 Handling
4.2 Selection
4.3 Number and dimensions
4.4 Condition of specimens
5 Constant head method
5.1 Principle
5.2 Apparatus
5.3 Procedure
5.4 Calculation and expression of results
6 Falling head method
6.1 Principle
6.2 Apparatus
6.3 Procedure
6.4 Calculation and expression of results
7 Test report
Annex A (informative) Determination of the correction factor, RT, to a water temperature of 20 °C
Annex B (informative) Relationship between head loss and flow velocity
Annex C (informative) Velocity index
Annex D (informative) Experimental data and calculations
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
Geosynthetic barriers, Geosynthetic materials, Clay, Construction materials, Impermeable materials, Permeability measurement, Gases, Gas flow, Flow measurement, Leak tests, Test equipment
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
BS EN ISO 10722:2007 Geosynthetics. Index test procedure for the evaluation of mechanical damage under repeated loading. Damage caused by granular material
BS EN ISO 10722 describes an index test procedure for simulating mechanical damage to geosynthetics, caused by granular material, under repeated loading. The damage is assessed visually and by the loss of tensile strength.
Other reference tests may be used to assess the damage caused by this test. The test method described is an index test procedure, using a standard granular material.
Contents of BS EN ISO 10722:
Foreword
Scope
Normative references
Definitions
Principle
Test specimens
Sampling
Number and dimensions of test specimens
Conditioning
Apparatus
Procedure
Damage procedure
Measurement of damage
Calculations
Test report
Bibliography
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
Geosynthetic materials, Geotextiles, Tensile testing, Joints, Seams, Width, Textile testing, Tensile strength, Glass fibres, Test specimens, Stability, Test equipment, Atmosphere, Testing conditions, Strength of materials
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
![[Image: 76362731428663819729.png]](http://pic.civilea.com/images/76362731428663819729.png)
![[Image: info.png]](http://postgen.civilea.com/icon/info.png){kind=icon}
![[Image: download.png]](http://postgen.civilea.com/icon/download.png){kind=icon}
![[Image: password.png]](http://postgen.civilea.com/icon/password.png){kind=icon}
![[Image: 76584191158172581879.png]](http://pic.civilea.com/images/76584191158172581879.png)
![[Image: 02628063312422225121.png]](http://pic.civilea.com/images/02628063312422225121.png)
![[Image: 40784501716633356055.png]](http://pic.civilea.com/images/40784501716633356055.png)
![[Image: 23070482695317270299.png]](http://pic.civilea.com/images/23070482695317270299.png)
![[Image: 73416003902506807782.png]](http://pic.civilea.com/images/73416003902506807782.png)
![[Image: 90832825993013435493.png]](http://pic.civilea.com/images/90832825993013435493.png)
![[Image: 30290414168845640955.png]](http://pic.civilea.com/images/30290414168845640955.png)
![[Image: 87535395989603815195.png]](http://pic.civilea.com/images/87535395989603815195.png)
![[Image: 37939919693552262688.png]](http://pic.civilea.com/images/37939919693552262688.png)