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ASTM D4630-19
Standard Test Method for Determining Transmissivity and Storage Coefficient of Low-Permeability Rocks by In Situ Measurements Using the Constant Head Injection Test- 발행일 : 2019-02-01
- 발행기관 : ASTM
상세정보
| 분야 | 04.08 : 토양, 석재 (Ⅰ) |
|---|---|
| 적용범위 | 1.1 This test method covers a field procedure for determining the transmissivity and storativity of geological formations having permeabilities lower than 10−3 μm2 (1 millidarcy) using constant head injection. 1.2 The transmissivity and storativity values determined by this test method provide a good approximation of the capacity of the zone of interest to transmit water, if the test intervals are representative of the entire zone and the surrounding rock is fully water-saturated. 1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this standard. Note 1: Unit Conversions—The permeability of a formation is often expressed in terms of the unit darcy (non-SI). A porous medium has a permeability of 1 Darcy when a fluid of viscosity 1 cp (1 mPa·s) flows through it at a rate of 1 cm3/s (10–6 m3/s)/1 cm2 (10–4 m2) cross-sectional area at a pressure differential of 1 atm (101.4 kPa)/1 cm (10 mm) of length. One Darcy corresponds to 0.987 μm2. For water as the flowing fluid at 20°C, a hydraulic conductivity of 9.66 μm/s corresponds to a permeability of 1 Darcy. Permeabilities may also be expressed as millidarcy (md), which is not an SI unit. 1.4 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026. 1.4.1 The procedures used to specify how data are collected/recorded or calculated, in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design. 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
| 국제분류(ICS)코드 | 07.060 : 지질학. 기상학. 수문학 |
| 페이지수 | 8 |
| Edition | 19 |
이력정보
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ASTM D4630-19상세보기 | Standard Test Method for Determining Transmissivity and Storage Coefficient of Low-Permeability Rocks by In Situ Measurements Using the Constant Head Injection Test | 2019-02-01 | 표준 |
| 2 | ASTM D4630-96(2008)상세보기 | Standard Test Method for Determining Transmissivity and Storage Coefficient of Low-Permeability Rocks by In Situ Measurements Using the Constant Head Injection Test (Withdrawn 2017) | 2008-09-15 | 구판 |
| 3 | ASTM D4630-96(2002)상세보기 | Standard Test Method for Determining Transmissivity and Storage Coefficient of Low-Permeability Rocks by In Situ Measurements Using the Constant Head Injection Test | 1996-10-10 | 구판 |
| 4 | ASTM D4630-96상세보기 | Standard Test Method for Determining Transmissivity and Storage Coefficient of Low-Permeability Rocks by In Situ Measurements Using the Constant Head Injection Test | 1996-10-10 | 구판 |
관련상품
- 관련상품이 존재하지 않습니다.
다른 사람이 함께 구입한 상품
- ASTM D4491/D4491M-20e1 - Standard Test Methods for Water Permeability of Geotextiles by Permittivity
- ASTM D5731-16 - Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications
- ASTM D5607-16 - Standard Test Method for Performing Laboratory Direct Shear Strength Tests of Rock Specimens Under Constant Normal Force
- ASTM D4525-13e2 - Standard Test Method for Permeability of Rocks by Flowing Air
- ISO 22282-2:2012 - Geotechnical investigation and testing — Geohydraulic testing — Part 2: Water permeability tests in a borehole using open systems
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