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Description of ASTM-D5495 2011ASTM D5495 - 03(2011)Standard Practice for Sampling With a Composite Liquid Waste Sampler (COLIWASA)Active Standard ASTM D5495 | Developed by Subcommittee: D34.01.03 Book of Standards Volume: 11.04 ASTM D5495Significance and Use This practice is applicable to sampling liquid wastes and other stratified liquids. The COLIWASA is used to obtain a vertical column of liquid representing an accurate cross-section of the sampled material. To obtain a representative sample of stratified liquids, the COLIWASA should be open at both ends so that material flows through it as it is slowly lowered to the desired sampling depth. The COLIWASA must not be lowered with the stopper in place. Opening the stopper after the tube is submerged will cause material to flow in from the bottom layer only, resulting in gross over-representation of that layer. This practice is to be used by personnel acquiring samples. This practice should be used in conjunction with Guide D4687 which covers sampling plans, safety, QA, preservation, decontamination, labeling and chain-of-custody procedures; Practice D5088 which covers decontamination of field equipment used at waste sites; Practice D5283 which covers project specifications and practices for environmental field operations, and Practice D5743 which covers drum sampling.. 1. 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 1A 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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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.
ASTM Standards D4687 Guide for General Planning of Waste Sampling D5088 Practice for Decontamination of Field Equipment Used at Waste Sites D5283 Practice for Generation of Environmental Data Related to Waste Management Activities: Quality Assurance and Quality Control Planning and Implementation D5743 Practice for Sampling Single or Multilayered Liquids, With or Without Solids, in Drums or Similar Containers D6232 Guide for Selection of Sampling Equipment for Waste and Contaminated Media Data Collection Activities Keywords COLIWASA; drum sampling; liquid sampling; sampling; waste: Stratified liquids; Unstratified liquids; Composite sampling; Drum sampling; Environmental sampling/testing; Sampling liquids; Sampling waste materials/applications; ICS Code ICS Number Code 13.030.20 (Liquid wastes. Sludge) DOI: 10.1520/D5495-03R11 ASTM International is a member of CrossRef. ASTM D5495This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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