ASTM D5358-93(2003)
(Practice)Standard Practice for Sampling with a Dipper or Pond Sampler
Standard Practice for Sampling with a Dipper or Pond Sampler
SIGNIFICANCE AND USE
This practice is intended for use in the sampling of surface waters and other liquids.
Dipper equipment is uncomplicated in construction, simple to use, and relatively easy to decontaminate; however, this practice will not provide accurate results with multiphase liquids.
This practice is to be used by personnel acquiring samples.
The dipper is best used to take a surface sample of liquid. No attempt should be made to take subsurface samples with a dipper because mixing and dilution will occur as the dipper is brought to the surface. Subsurface layers must be sampled using a device that can be closed prior to bringing it to the surface (for example, a COLIWASA, tube sampler, or bottle sampler).
The dipper is not appropriate for sampling multiphase liquids if quantitative characterization is needed.
When volatile organic analysis (VOA) will be performed, samples obtained with a dipper should be poured into an appropriate container (VOA vial) with minimal air contact and agitation.
This practice should be used in conjunction with Guide D 4687, which covers sampling plans, safety, Quality Assurance (QA), preservation, decontamination, labeling, and chain-of-custody procedures, also Practice D 5088, which covers decontamination of field equipment used at waste sites. Other documents pertinent to this practice are EPA-600/2-80-018 and EPA-600/4-84-076.
SCOPE
1.1 This practice describes the procedure and equipment for taking surface samples of water or other liquids using a dipper. A pond sampler or dipper with extension handle allows the operator to sample streams, ponds, waste pits, and lagoons as far as 15 ft from the bank or other secure footing. The dipper is useful in filling a sample bottle without contaminating the outside of the bottle.
1.2 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.
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Designation:D5358–93 (Reapproved 2003)
Standard Practice for
Sampling with a Dipper or Pond Sampler
This standard is issued under the fixed designation D 5358; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4.2 Dipper equipment is uncomplicated in construction,
simple to use, and relatively easy to decontaminate; however,
1.1 This practice describes the procedure and equipment for
this practice will not provide accurate results with multiphase
taking surface samples of water or other liquids using a dipper.
liquids.
A pond sampler or dipper with extension handle allows the
4.3 This practice is to be used by personnel acquiring
operator to sample streams, ponds, waste pits, and lagoons as
samples.
far as 15 ft from the bank or other secure footing. The dipper
4.4 The dipper is best used to take a surface sample of
is useful in filling a sample bottle without contaminating the
liquid. No attempt should be made to take subsurface samples
outside of the bottle.
with a dipper because mixing and dilution will occur as the
1.2 This standard does not purport to address all of the
dipper is brought to the surface. Subsurface layers must be
safety concerns, if any, associated with its use. It is the
sampled using a device that can be closed prior to bringing it
responsibility of the user of this standard to establish appro-
to the surface (for example, a COLIWASA, tube sampler, or
priate safety and health practices and determine the applica-
bottle sampler).
bility of regulatory limitations prior to use.
4.5 The dipper is not appropriate for sampling multiphase
2. Referenced Documents
liquids if quantitative characterization is needed.
4.6 When volatile organic analysis (VOA) will be per-
2.1 ASTM Standards:
formed, samples obtained with a dipper should be poured into
D 4687 Guide for General Planning of Waste Sampling
an appropriate container (VOA vial) with minimal air contact
D 5088 Practice for Decontamination of Field Equipment
and agitation.
Used at Nonradioactive Waste Sites
4.7 This practice should be used in conjunction with Guide
2.2 Other Documents:
D 4687, which covers sampling plans, safety, Quality Assur-
EPA-600/2-80-018 Samplers and Sampling Procedures for
ance (QA), preservation, decontamination, labeling, and chain-
Hazardous Waste Streams
of-custody procedures, also Practice D 5088, which covers
EPA-600/4-84-076 Characterization of Hazardous Waste
decontamination of field equipment used at waste sites. Other
Sites-A Methods Manual: Volume II. Available Sampling
documents pertinent to this practice are EPA-600/2-80-018 and
Methods, Second Edition
EPA-600/4-84-076.
3. Summary of Practice
5. Sampling Equipment
3.1 The dipper is lowered into the liquid and lifted out while
5.1 Dippers may be fabricated as shown in Fig. 1 and are
avoiding splashing or otherwise disturbing the surface layer.
also available commercially (see Fig. 2). Disposable dippers
The sample is then poured into a sample container.
are convenient for use with hazardous materials. Dippers
4. Significance and Use
selected must be constructed of materials compatible with the
liquid being sampled and with the tests or analyses to be
...
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