5.1 The preparation of field logs provides documentation of field exploration procedures and findings for geotechnical, geologic, hydrogeologic, and other investigations of subsurface site conditions. This guide may be used for a broad range of investigations.
5.2 The recorded information in a field log will depend on the specific purpose of the site investigation. All of the information given in this guide are possible data that could be considered when logging. Refer to report sections of the individual standards listed in Section 2 for specific reporting requirements and example field data sheets and example logs. Required information on field logs that is determined by the user or agency performing the testing and as appropriate to be required in their work plans or quality assurance plans may or may not include all items in Section 6.
5.3 Numerous guidance documents are available, for examples and typical requirement on logging of subsurface investigations (1-10)4.
Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it and the suitability of the equipment and facility used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some, but not all, of those factors.
Область применения1.1 This guide describes the type of information that should be recorded during field subsurface explorations in soil and rock.
1.2 This guide is not intended to specify all of the information required for preparing field logs. Such requirements will vary depending on the purpose of the investigation, the intended use of the field log, and particular needs of the client or user as required by their project specific work plans and/or quality assurance plans.
1.3 This guide is applicable to geotechnical and geoenvironmental boreholes in soil and rock, auger holes, excavated pits, or other subsurface excavations or exposures such as road side cuts or stream banks.
1.4 This guide may not be suited to all types of subsurface exploration such as mining, hazardous waste, septic system, vapor intrusion, or other special types of exploration. The standard does not address geophysical methods (D5753, D6429).
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 guide offers an organized collection of information or a series of options and does not recommend a specific course of action. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this guide may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care of which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project's many unique aspects. The word “Standard” in the title of this document means only that the document has been approved through the ASTM consensus process.
1.7 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.