Standard Test Method for Penetration Test and Split-Barrel Sampling of Soils
|Publication Date:||10 January 1999|
|ICS Code (Earthworks. Excavations. Foundation construction. Underground works):||93.020|
1. Scope *
1.1 This test method describes the procedure, generally known as the Standard Penetration Test (SPT), for driving a split-barrel sampler to obtain a representative soil sample and a measure of the resistance of the soil to penetration of the sampler.
1.2 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For a specific precautionary statement, see 5.4.1.
1.3 The values stated in inch-pound units are to be regarded as the standard.
NOTE 1--Practice D 6066 can be used when testing loose sands below the water table for liquefaction studies or when a higher level of care is required when drilling these soils. This practice provides information on drilling methods, equipment variables, energy corrections, and blow-count normalization.