1.1 These methods cover the determination of the quality of soil samples by X-ray radiography.

1.2 These methods enable the user to determine the effects of sampling and natural variations within samples as identified by the extent of the relative penetration of X rays through soil samples.

1.3 These methods can only be used to their fullest extent after considerable experience is obtained through many detailed comparisons between the X-ray film and the sample X-rayed.

1.4 The values stated in inch-pound units are to be regarded as the standard.

1.5 This standard does not purport to address all of the safety problems 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 specific precaution statements, see Section 6.