scope:

This practice covers equipment and procedures for the use of earth augers in geotechnical subsurface explorations.

This procedure is applicable in soils that permit auger drilling to obtain representative or in situ samples and when information concerning resistance to driving casing or drive pipe is not necessary.

The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of R 18 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with R 18 alone does not completely assure reliable results. Reliable results depend on many factors; following the suggestions of R 18 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.