BS EN ISO 11275:2014
Current
The latest, up-to-date edition.
Soil quality. Determination of unsaturated hydraulic conductivity and water-retention characteristic. Wind\'s evaporation method
Hardcopy , PDF
English
31-05-2014
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Principle
6 Apparatus
7 Procedure
8 Expression of results
9 Accuracy
10 Test report
Bibliography
Provides a laboratory method for the simultaneous determination in soils of the unsaturated hydraulic conductivity and of the soil water-retention characteristic.
| Committee |
EH/4
|
| DevelopmentNote |
Renumbers and supersedes BS ISO 11275. 2014 Version incorporates corrigendum to BS ISO 11275. Supersedes 95/521677 DC. (05/2014)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies a laboratory method for the simultaneous determination in soils of the unsaturated hydraulic conductivity and of the soil water-retention characteristic. It is applicable only to measurement of the drying or desorption curve. Application of the method is restricted to soil samples which are, as far as possible, homogeneous. The method is not applicable to soils which shrink in the range of matric head hm = 0 cm to hm = −800 cm.
The range of the determination of the conductivity depends on the soil type. It lies between matric heads of approximately hm = −50 cm and hm = −700 cm.
The range of the determination of the water-retention characteristic lies between matric heads of approximately hm = 0 cm and hm = −800 cm.
NOTE 1 An infiltrometer method can be used to determine hydraulic conductivities near saturation.
NOTE 2 ISO 11274 gives methods to determine the water-retention characteristic for matric heads between 0 cm and −15 000 cm.
| Standards | Relationship |
| ISO 11275:2004 | Identical |
| EN ISO 11275:2014 | Identical |
| ISO 10381-1:2002 | Soil quality Sampling Part 1: Guidance on the design of sampling programmes |
| ISO 11276:1995 | Soil quality — Determination of pore water pressure — Tensiometer method |
| ISO 11461:2001 | Soil quality — Determination of soil water content as a volume fraction using coring sleeves — Gravimetric method |
| ISO 11274:1998 | Soil quality Determination of the water-retention characteristic Laboratory methods |
| ISO 10381-4:2003 | Soil quality Sampling Part 4: Guidance on the procedure for investigation of natural, near-natural and cultivated sites |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.