ASTM D5495-03

Standard Practice for Sampling With a Composite Liquid Waste Sampler (COLIWASA)

SCOPE
1.1 This practice describes the procedure for sampling liquids with the composite liquid waste sampler, or "COLIWASA." The COLIWASA is an appropriate device for obtaining a representative sample from stratified or unstratified liquids. Its most common use is for sampling containerized liquids, such as tanks, barrels, and drums. It may also be used for pools and other open bodies of stagnant liquid.
Note 1—A limitation of the COLIWASA is that the stopper mechanism may not allow collection of approximately the bottom inch of material, depending on construction of the stopper.
1.2 The COLIWASA should not be used to sample flowing or moving liquids.
1.3 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.

General Information

• Status: Historical
• Publication Date: 31-Oct-2003
• Technical Committee: D34 - Waste Management
• Drafting Committee: D34.01.03 - Sampling Equipment

Relations

• Replaces: ASTM D5495-94(2001) - Standard Practice for Sampling With a Composite Liquid Waste Sampler (COLIWASA)
• Effective Date: 01-Nov-2003
• Replaced By: ASTM D5495-03(2007) - Standard Practice for Sampling With a Composite Liquid Waste Sampler (COLIWASA)
• Effective Date: 01-Oct-2007
• Referred By: ASTM D6232-21 - Standard Guide for Selection of Sampling Equipment for Waste and Contaminated Media Data Collection Activities
• Effective Date: 01-Nov-2003
• Referred By: ASTM D8008-20 - Standard Practice for Representative Field Sampling of Traffic Paints
• Effective Date: 01-Nov-2003
• Referred By: ASTM D6063-11(2018) - Standard Guide for Sampling of Drums and Similar Containers by Field Personnel
• Effective Date: 01-Nov-2003
• Referred By: ASTM D5743-21 - Standard Practice for Sampling Single or Multilayered Liquids, with or Without Solids, in Drums or Similar Containers
• Effective Date: 01-Nov-2003
• Referred By: ASTM D7831-20 - Standard Practice for Sampling of Tanks by Field Personnel
• Effective Date: 01-Nov-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D5495–03
Standard Practice for
Sampling With a Composite Liquid Waste Sampler
1
(COLIWASA)
This standard is issued under the fixed designation D 5495; 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 closed and the device is retrieved. The contents are subse-
quently discharged into a sample container.
1.1 This practice describes the procedure for sampling
liquids with the composite liquid waste sampler, or “COLI-
4. Significance and Use
WASA.” The COLIWASAis an appropriate device for obtain-
4.1 Thispracticeisapplicabletosamplingliquidwastesand
ing a representative sample from stratified or unstratified
other stratified liquids. The COLIWASA is used to obtain a
liquids. Its most common use is for sampling containerized
verticalcolumnofliquidrepresentinganaccuratecross-section
liquids, such as tanks, barrels, and drums. It may also be used
of the sampled material. To obtain a representative sample of
for pools and other open bodies of stagnant liquid.
stratified liquids, the COLIWASAshould be open at both ends
NOTE 1—AlimitationoftheCOLIWASAisthatthestoppermechanism
so that material flows through it as it is slowly lowered to the
may not allow collection of approximately the bottom inch of material,
desired sampling depth. The COLIWASAmust not be lowered
depending on construction of the stopper.
with the stopper in place. Opening the stopper after the tube is
1.2 The COLIWASA should not be used to sample flowing
submerged will cause material to flow in from the bottom layer
or moving liquids.
only, resulting in gross over-representation of that layer.
1.3 This standard does not purport to address all of the
4.2 This practice is to be used by personnel acquiring
safety problems, if any, associated with its use. It is the
samples.
responsibility of the user of this standard to establish appro-
4.3 This practice should be used in conjunction with Guide
priate safety and health practices and determine the applica-
D 4687 which covers sampling plans, safety, QA, preservation,
bility of regulatory limitations prior to use.
decontamination, labeling and chain-ofcustody procedures;
Practice D 5088 which covers decontamination of field equip-
2. Referenced Documents
ment used at waste sites; and Practice E 5283 which covers
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2.1 ASTM Standards:
project specifications and practices for environmental field
D 4687 Guide for General Planning of Waste Sampling
operations.
D 5088 Practices for Decontamination of Field Equipment
5. Sampling Equipment
Used at Waste Sites
D 5283 Practice for Generation of Environmental Data
5.1 COLIWASAs are available commercially with different
Related to Waste Management Activities: Quality Assur-
types of stoppers and locking mechanisms, but they all operate
ance and Quality Control Planning and Implementation
using the same principle. They can also be constructed from
D 5743 Practice for Sampling Single or Mulilayered Liq-
materials such as polyvinylchloride (PVC), glass, metal, or
uids,With orWithout Solids in Drums or Similar Contain-
polytetrafluoroethylene (PTFE). A traditional model of the
3 ,4
ers
COLIWASAisshowninFig.1[deVeraetal.] ;however,the
design can be modified or adapted, or both, to meet the needs
3. Summary of Practice
of the sampler. COLIWASAs must be selected that are con-
3.1 A clean device is slowly lowered into the liquid to be
structed of materials compatible with the waste being sampled
sampled.After it has filled, the bottom of the sampling tube is
and with the analyses or tests to be performed. Due to the
1
This practice is under the jurisdiction of ASTM Committee D34 on Waste
Management and is the direct responsibility of Subcommittee D34.01.03 on Sample
Preservation.
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Current edition approved Nov. 1, 2003. Published January 2004. Originally de Vera, E. R., Simmons, B. P., Stephens, R. C., and Storm, D. L., “Samplers
approved in 1994. Last previous edition approved in 1994 as D 5495–94. and Sampling Procedures for Hazardous Waste Streams,” EPA-600/2-80-018,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or January 1980.
4
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Ford, P. J., Turina, P. J., and Seeley, D. E., “Characterization of Hazardous
Standards volume information, refer to the standard’s Document Summary page on WasteSites—AMethodsManual:VolumeII,”AvailableSamplingMethods,Second
the ASTM website. Edition, EPA-600/4-84-076, December 1984.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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