1.1 ,This practice covers equipment and procedures for the use of earth augers in shallow depth geotechnical exploration. This practice does not apply to hollow-stem augers. Uses of hollow-stem auger drilling methods for geotechnical exploration are addressed in Test Method D6151. Samples recovered from this standard are considered as belonging to Group A or B in accordance with D4220. The samples are disturbed and can generally be used for classification testing (D2487, D2488), determination of compaction characteristics (D698, D1557), or any other standard that requires bulk samples. For obtaining intact samples use of thin-walled sample tubes (D1587) in conjunction with fluid rotary drilling (D5783) or hollow-stem augers (D6151) may be considered.