<?xml version="1.0" encoding="UTF-8"?><toc><section id="foreword.nat"><title>Nationales Vorwort</title></section><section id="foreword.reg"><title>Europäisches Vorwort</title></section><section id="introduction.reg"><title>Einleitung</title></section><section id="sub-1"><label>1</label><title>Anwendungsbereich</title></section><section id="sub-2"><label>2</label><title>Normative Verweisungen</title></section><section id="sub-3"><label>3</label><title>Begriffe</title><section id="sub-3.1"><label>3.1</label><title>Laboratoriumsprobe</title></section><section id="sub-3.2"><label>3.2</label><title>Probe</title></section><section id="sub-3.3"><label>3.3</label><title>Probenvorbereitung</title></section></section><section id="sub-4"><label>4</label><title>Kurzbeschreibung</title></section><section id="sub-5"><label>5</label><title>Allgemeine Anforderungen an die Bestimmung des Sauerstoffgehaltes</title></section><section id="sub-6"><label>6</label><title>Reagenzien</title></section><section id="sub-7"><label>7</label><title>Gerät</title></section><section id="sub-8"><label>8</label><title>Probenahme</title></section><section id="sub-9"><label>9</label><title>Messverfahren</title><section id="sub-9.1"><label>9.1</label><title>Probenvorbereitung</title></section><section id="sub-9.2"><label>9.2</label><title>Kalibrierung</title></section><section id="sub-9.3"><label>9.3</label><title>Messung</title><section id="sub-9.3.1"><label>9.3.1</label><title>Generische Messung</title></section><section id="sub-9.3.2"><label>9.3.2</label><title>Hygroskopische Proben</title></section></section><section id="sub-9.4"><label>9.4</label><title>Blindwertbestimmung</title></section><section id="sub-9.5"><label>9.5</label><title>Systemeinstellungen</title></section></section><section id="sub-10"><label>10</label><title>Berechnung des Sauerstoffgehaltes</title></section><section id="sub-11"><label>11</label><title>Prüfbericht</title></section><section id="sub-a"><label>Anhang A</label><title>Leistungsmerkmale (normativ)</title></section><section id="sub-annex.bibliography.reg"><title>Literaturhinweise</title></section><section id="sub-na"><label>Nationaler Anhang NA</label><title>Literaturhinweise (informativ)</title></section></toc>