Research Article
Apr 1964
Low Pressure Air Test for Sanitary Sewers
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VIEW THE REPLYPublication: Journal of the Sanitary Engineering Division
Volume 90, Issue 2
Abstract
Testing a sewer pipe for leakage by using air at pressures of approximately 3 psi can measure effectively the quality of the installation. New work can be tested by noting the time required for pressure in a closed section of the pipe to drop from 3.5 psi to 2.5 psi. Where significant leakage is present, it can be quantitatively determined by metering the amount of air required to maintain a pressure in the test section. The effect of moisture on the permeability of vitrified clay pipe and its effect on the testing procedure is determined. Specifications for testing new pipe installations suggested, and methods of computing time necessary to meet specifications for a single size pipe and for combinations of various size pipes are given. Field tests show that pipe without a detectable failure will lose less than 0.003 cu ft of air per min per sq ft of internal pipe surface, and that any air loss exceeding 2.0 cu ft per min can be located.
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Information
Published In
Journal of the Sanitary Engineering Division
Volume 90 • Issue 2 • April 1964
Pages: 1 - 32
Copyright
© 1964 American Society of Civil Engineers.
History
Published in print: Apr 1964
Published online: Feb 12, 2021
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Authors
Affiliations
Roy E. Ramseier, F.ASCE
Constr. Engr., Roy Edwin Ramseier & Assoc., Berkeley, Calif.
George C. Riek, AM.ASCE
Sanitary Engr., Roy Edwin Ranseier & Associates, Berkeley, Calif.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.