Standard Active Last Updated: Jun 21, 2024 Track Document
ASTM D6759-24

Standard Practice for Sampling Liquids Using Grab and Discrete Depth Samplers

Standard Practice for Sampling Liquids Using Grab and Discrete Depth Samplers D6759-24 ASTM|D6759-24|en-US Standard Practice for Sampling Liquids Using Grab and Discrete Depth Samplers Standard new BOS Vol. 11.04 Committee D34
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Significance and Use

4.1 Sampling at specified depth(s) within a liquid may be needed to confirm or rule out variations within a target population. This practice describes the design and operation of commercially available grab and discrete depth samplers for persons responsible for designing or implementing sampling programs, or both.

4.2 These sampling devices are used for sampling liquids in tanks, ponds, impoundments, and other open bodies of water. Some may be used from the edge or bank of the sampling site, whereas some can only be used from a platform, boat, or bridge over the sampling site. Some of the devices described are suitable for sampling slurries and sludges as well as aqueous and other liquids with few or no suspended solids.

4.3 Practice D5743 provides guidance for sampling drums, tanks, or similar containers.

4.4 This practice does not address general guidelines for planning waste sampling activities (Guide D4687), development of data quality objectives (Practice D5792), the design of monitoring systems and determination of the number of samples to collect (Practice D6311), in situ measurement of parameters of interest, data assessment, and statistical interpretation of resultant data (Guide D6233), sample preservation, sampling and field quality assurance (Guide D5612), or the selection of sampling locations or obtaining a representative sample (Guide D6044).


1.1 This practice describes sampling devices and procedures for collecting samples of liquids or sludges, or both, whose upper surface can be accessed by the suitable device. These devices may be used to sample tanks that have an appropriately sized and located sampling port.

1.2 This practice describes and discusses the advantages and limitations of the following commonly used equipment, some of which can be used for both grab and discrete depth sampling: dipper, liquid grab sampler, swing jar sampler, Bacon bomb, Kemmerer sampler, discrete level sampler, liquid profiler, peristaltic pump, and the syringe sampler.

1.3 This practice provides instructions on the use of these samplers.

1.4 This practice does not address sampling devices for collecting ground water.

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

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Book of Standards Volume: 11.04
Developed by Subcommittee: D34.01.03
Pages: 9
DOI: 10.1520/D6759-24
ICS Code: 13.030.20