<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31375516</termId><termName>deionized water</termName><termType>PT</termType><termNote><![CDATA[ Water from which dissolved ions have been removed by passing the water through cationic and anionic ion exchange. ]]></termNote><termCreatedDate>2026-03-30 20:41:17</termCreatedDate><relation><relationType>UF</relationType><termId>31375517</termId><termName>water, deionized</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31344803</termId><termName>water by quality</termName><termType>PT</termType></relation></term>  </Zthes>