<?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">firedamp detectors</topic></authority><related type="broader"><topic>tools and equipment for mining and excavating</topic></related><variant type="other"><topic>firedamp detector</topic></variant> <note xml:lang="en"><![CDATA[ Devices used for detecting the explosive gas methane in the context of mining operations. A firedamp detector is hung at the mining face or in other work areas to monitor methane levels and sound an alarm when they reach a dangerous concentration. ]]></note></mads>