<?xml version="1.0" encoding="UTF-8" standalone="no"?><?Xpress productLine="ncc-clause"?><clause id="_45a9db0e-b9b6-42f3-a3b1-ff0521f70d21" outputclass="ncc-clause"><meta><facet building="Class 1a"/><facet building="Class 1b"/><facet building="Class 10a"/><facet building="Class 10b"/><facet building="Class 10c"/></meta><sptc>J6D7</sptc><title id="_7e540dfb-275a-4cbc-94e2-b24b24e3e7ae">Ductwork sealing</title><archive-num>2019: J5.6</archive-num><subclause id="_c6030025-c4ad-4e2c-9f60-bce4b1f92b69" outputclass="subclause"><title id="_bbfd981d-d709-46e9-83c6-f3e133a2ff7a">SubClause</title><num>1</num><p>Ductwork in an <xref xmlns:inv="urn:xpressauthor:xpressdocument" format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1181_1.0.0.xml#_386d327a-f182-4f1a-bf21-5cfdef50cc8d" id="_612f9644-473b-4ac0-977c-0e9283186966" inv:access="external" scope="local" type="abcb-glossentry">air-conditioning</xref> system with a capacity of 3000 L/s or greater, not located within the only or last room served by the system, must be sealed against air loss in accordance with the duct sealing requirements of AS 4254.1 and AS 4254.2 for the static pressure in the system.</p></subclause></clause>