AASHTO R 21 : 1996 (R2019)
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
DRILLING FOR SUBSURFACE INVESTIGATIONS-UNEXPECTEDLY ENCOUNTERING SUSPECTED HAZARDOUS MATERIAL
Hardcopy , PDF
English
01-01-2019
29-08-2026
1. SCOPE
2. REFERENCED DOCUMENTS
3. SIGNIFICANCE AND USE
4. HAZARDOUS MATERIAL IDENTIFICATION
5. MINIMIZING CONTAMINATION RISK
6. PROCEDURE
7. KEYWORDS
Pertains to help protect drillers in the event they unexpectedly Encounter suspected hazardous materials while performing subsurface investigations.
| DevelopmentNote |
Included in AASHTO HM. (09/2013)
|
| DocumentType |
Standard
|
| Pages |
3
|
| ProductNote |
Reconfirmed 2015
|
| PublisherName |
American Association of State Highway and Transportation Officials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| ASTM D 420 : 2018 | Standard Guide for Site Characterization for Engineering Design and Construction Purposes |
| AASHTO R 13 : 2012 | PRACTICE FOR CONDUCTING GEOTECHNICAL SUBSURFACE INVESTIGATIONS |
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