This document is not an endorsement of routine use of testing. Leakage testing is generally an unjustified major expense that is unnecessary when proper methods of assembly and sealing are used. Visual inspection for application of such proper methods will ordinarily suffice for verification of reasonably tight construction. Under any circumstances reasonable allowances for leakage must be adopted because no duct is absolutely airtight.
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ACCEPTANCE This document or publication is prepared for voluntary acceptance and use within the limitations of application defined herein, and otherwise as those adopting it or applying it deem appropriate. It is not a safety standard. Its application for a specific project is contingent on a designer or other authority defining a specific use.
SMACNA has no power or authority to police or enforce compliance with the contents of this document or publication and it has no role in any representations by other parties that specific components are, in fact, in compliance with it.
In the event that the petitioner has a substantive disagreement with the interpretation, an appeal may be filed with the Technical Resources Committee which has technical oversight responsibility. The request must pertain to a specifically identified portion of the document that does not involve published text which provides the requested information.
In considering such requests, the Association will not review or judge products or components as being in compliance with the document or publication. Oral and written interpretations otherwise obtained from anyone affiliated with the Association are unofficial. This procedures does not prevent any committee chairman, member of the committee, or staff liaison from expressing an opinion on a provision within the document, provided that such person clearly states that the opinion is personal and does not represent an official act of the association in any way, and it should not be relied on as such.
The Board of Directors of SMACNA shall have final authority for interpretation of this standard with such rules or procedures as they may adopt for processing same. APPLICATION Any Standards contained in this publication were developed using reliable engineering principles and research plus consultation with, and information obtained from, manufacturers, users, testing laboratories, and others having specialized experience. They are subject to revision as further experience and investigation may show is necessary or desirable.
Construction and products that comply with these Standards will not necessarily be acceptable if, when examined and tested, they are found to have other features which impair the result contemplated by these requirements. Authorities considering adoption of any standards contained herein should review all federal, state, local and contract regulations applicable to specific installations. REPRINT PERMISSION Nonexclusive, royalty-free permission is granted to government and private sector specifying authorities to reproduce only any construction details found herein in their specifications and contract drawings prepared for receipt of bids on new construction and renovation work within the Untied States and its territories, provided that the material copied is unaltered in substance and that the reproducer assumes all liability for the specific application, including errors in reproduction.
The Association prescribes acceptable use of the logo and expressly forbids the use of it to represent anything other than possession of membership. Possession of membership and use of the logo in no way constitutes or reflects SMACNA approval of any product, method, or component. Furthermore, compliance of any such item with standards published or recognized by SMACNA is not indicated by presence of the logo.
HVAC AIR DUCT LEAKAGE TEST MANUAL
HVAC DUCT CONSTRUCTION STANDARDS METAL AND FLEXIBLE