<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">troy ounces</topic></authority><related type="other"><topic>karats</topic></related><related type="other"><topic>carats</topic></related><related type="broader"><topic>size/dimension units for weight</topic></related><variant type="other"><topic>ounces, troy</topic></variant><variant type="other"><topic>oz t</topic></variant><variant type="other"><topic>troy ounce</topic></variant> <note xml:lang="en"><![CDATA[ The standard system of weight in ounces used for precious metals and precious stones; one troy ounce is defined as exactly 31.1034768 g.  ]]></note></mads>