<?xml version="1.0" encoding="UTF-8" standalone="no"?><?Xpress productLine="ncc-clause" ?><clause id="_829981e4-ad30-4137-a852-0e0aae4f6419" outputclass="ncc-clause"><sptc>S2C3</sptc><title id="_edceec68-a0c2-43df-b368-5e7afb4e9232">Gypsum blocks</title><archive-num>2019: Sch. 5 (Annex): 1.2</archive-num><subclause id="_ec7d985f-582b-4ca0-aff1-f30f0e5c075b" outputclass="subclause"><title id="_979aad19-a1e5-43b6-bb29-161b33277d07">SubClause</title><num>1</num><p>Gypsum blocks must be laid in gypsum-sand mortar or lime mortar.</p></subclause></clause>