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Description of ASTM-F2550 2006ASTM F2550-06Historical Standard: Standard Practice for Locating Leaks in Sewer Pipes Using Electro-Scan--the Variation of Electric Current Flow Through the Pipe WallASTM F2550Scope 1.1 This practice covers procedures for using the electro-scan method to detect and locate potential pipe leak defects that are potential sources of leaks in pipes fabricated from electrically nonconductive material such as plastic, clay, and concrete (reinforced and non-reinforced). The electro-scan method uses the variation of electric current flow through the pipe wall to locate defects that are potential water leakage paths either into or out of the pipe. 1.2 This practice applies to mainline and lateral gravity flow storm sewers, sanitary sewers, and combined sewers with diameters between 3 and 60 in. (75 and 1500 mm). The pipes must be free of obstructions that prevent the sonde passing through the pipe. 1.3 The use of the electro-scan requires access to sewers, filling sewers, and operations along roadways that are safety hazards. This standard does not describe the hazards likely to be encountered or the safety procedures that must be carried out when operating in these hazardous environments. () There are no safety hazards specifically associated with the use of an electro-scan apparatus that complies with the specifications provided in this standard. ( and .) 1.4 The use of electro-scan requires the insertion of various items into a sewer. There is always a risk that due to unknown structural conditions in the sewer such items may become lodged in the pipe or may cause the state of a sewer in poor structural condition to further deteriorate. This standard does not describe methods to assess the structural risk of a sewer. 1.5 The values stated in inch/pound units are to be regarded as the standard. The values in parentheses are for information only. 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 to determine the applicability of regulatory limitations prior to use. Keywords defects; electric current flow; infiltration; leaks; sewer pipes ICS Code ICS Number Code 93.030 (External sewerage systems) DOI: 10.1520/F2550-06 The following editions for this book are also available...This 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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