<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31444241</termId><termName>high phosphate slide comparators</termName><termType>PT</termType><termNote><![CDATA[ Devices for determining phosphates in boiler water consisting of a slide with incremental or gradiated standard measurements. ]]></termNote><termCreatedDate>2026-03-30 21:04:11</termCreatedDate><relation><relationType>UF</relationType><termId>31444242</termId><termName>high phosphate slide comparator</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31385606</termId><termName>comparators</termName><termType>PT</termType></relation></term>  </Zthes>