<?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">low-pressure sodium lamps</topic></authority><related type="broader"><topic>sodium lamps</topic></related><variant type="other"><topic>SOX lamps</topic></variant><variant type="other"><topic>SOXs</topic></variant><variant type="other"><topic>lamps, SOX</topic></variant><variant type="other"><topic>lamps, low-pressure sodium</topic></variant><variant type="other"><topic>low pressure sodium lamps</topic></variant><variant type="other"><topic>low-pressure sodium lamp</topic></variant><variant type="other"><topic>sodium lamps, low-pressure</topic></variant> <note xml:lang="en"><![CDATA[ Sodium lamps in which light is produced by radiation from sodium vapor operating at a partial pressure of 01 to 1.5 Pa. ]]></note></mads>