<?xml version="1.0" encoding="UTF-8" standalone="no"?><image-reference id="_7f6cb079-cd46-4628-8f58-e47a5baf8ebf" variation="NT"><num>10.7.1s</num><title id="_5a94b465-9648-4250-9d33-992128773c84">Ducts or other construction separating soil and waste pipes from units — masonry to achieve R<sub id="_75fba259-d2e2-43d9-aa3a-4fd8c20f59b1">W</sub> of 30</title><image alt="Ducts or other construction separating soil and waste pipes from units — masonry to achieve RW of 30." href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/10-7-1s-ducts-or-other-construction-masonry-rw-30-NT.svg"/><desc-note id="_dc48f6c9-a000-47c0-8bcb-60c82243f309"><p>Masonry not less than 90 mm thick.</p></desc-note></image-reference>