Test Methods for Existing Mechanical Systems

  • Forrest Wilson


The implementation of a design complying with the code requirements in new construction is fairly straightforward, since inspection and testing of critical elements at key times is feasible as construction progresses and before the elements are concealed. However, this is not possible where evaluation of existing, largely concealed plumbing is required. Frequently, this difficulty has resulted in the tendency to totally replace aged plumbing rather than selectively rehabilitate existing systems. With modern techniques for evaluating plumbing systems, however, total replacement may possibly be avoided in favor of supplementing the existing system or replacement of deteriorated components only. Descriptions of some of the inspection and test methods available for evaluating the condition of existing plumbing systems follow.


Circuit Breaker Plumbing System Sulfur Hexafluoride Pressure Relief Valve Cobaltous Chloride 
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  1. Test Methods for Existing Mechanical Systems; Selected Methods for Condition Assessment of Structural, HVAC Plumbing and Electrical Systems in Existing Buildings. NBSIR 80-2171; Frank H. Lerchen, James H. Pielert, Thomas K. Faison.Google Scholar

Copyright information

© Van Nostrand Reinhold Company Inc. 1984

Authors and Affiliations

  • Forrest Wilson

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