1.1 This practice covers the procedure for sampling stratified or un-stratified waters and liquid waste using bailers.

1.2 Three specific bailers are discussed in this practice. The bailers are the single and double check valve and differential pressure.

1.3 This standard does not cover all of the bailing devices available to the user. The bailers chosen for this practice are typical of those commercially available.

1.4 This practice should be used in conjunction with Guide D4687, Practice D5088, and Practice D5283.

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 and health practices and determine the applicability of regulatory limitations prior to use.