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Standard Test Methods for Water Permeability of Geotextiles by Permittivity
| 분야 | 04.13 : 토목 합성 자재 |
|---|---|
| 적용범위 | 1.1 These test methods cover procedures for determining the hydraulic conductivity (water permeability) of geotextiles in terms of permittivity under standard testing conditions, in the uncompressed state. Included are three procedures: the constant head and falling head methods using a water flow apparatus, and the air flow method using an air flow apparatus. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
| 국제분류(ICS)코드 | |
| 페이지수 | 8 |
| Edition | 16 |
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ASTM D4491/D4491M-22 | Standard Test Methods for Water Permeability of Geotextiles by Permittivity | 2022-05-01 | 표준 |
| 2 | ASTM D4491/D4491M-22 REDLINE | Standard Test Methods for Water Permeability of Geotextiles by Permittivity | 2022-05-01 | 표준 |
| 3 | ASTM D4491/D4491M-21 | Standard Test Methods for Water Permeability of Geotextiles by Permittivity | 2021-05-01 | 구판 |
| 4 | ASTM D4491/D4491M-21 REDLINE | Standard Test Methods for Water Permeability of Geotextiles by Permittivity | 2021-05-01 | 구판 |
| 5 | ASTM D4491/D4491M-20 | Standard Test Methods for Water Permeability of Geotextiles by Permittivity | 2020-06-01 | 구판 |
| 6 | ASTM D4491/D4491M-20 REDLINE | Standard Test Methods for Water Permeability of Geotextiles by Permittivity | 2020-06-01 | 구판 |
| 7 | ASTM D4491/D4491M-20e1 | Standard Test Methods for Water Permeability of Geotextiles by Permittivity | 2020-06-01 | 구판 |
| 8 | ASTM D4491/D4491M-17 REDLINE | Standard Test Methods for Water Permeability of Geotextiles by Permittivity | 2017-01-01 | 구판 |
| 9 | ASTM D4491/D4491M-17 | Standard Test Methods for Water Permeability of Geotextiles by Permittivity | 2017-01-01 | 구판 |
| 10 | ASTM D4491/D4491M-16 | Standard Test Methods for Water Permeability of Geotextiles by Permittivity | 2016-07-01 | 구판 |
| 11 | ASTM D4491/D4491M-15 | Standard Test Methods for Water Permeability of Geotextiles by Permittivity | 2015-07-01 | 구판 |
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