<?xml version="1.0" encoding="UTF-8"?><toc><section id="foreword.nat"><title>Nationales Vorwort</title><section id="sub-amendments"><title>Änderungen</title></section><section id="sub-previous.edition"><title>Frühere Ausgaben</title></section></section><section id="foreword.int"><title>Bestimmung des Wasser-Extrakts</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>Definition</title><section id="sub-3.1"><label>3.1</label><title>Wasser-Extrakt</title></section></section><section id="sub-4"><label>4</label><title>Prinzip</title></section><section id="sub-5"><label>5</label><title>Geräte</title></section><section id="sub-6"><label>6</label><title>Probenahme</title></section><section id="sub-7"><label>7</label><title>Probenvorbereitung</title></section><section id="sub-8"><label>8</label><title>Durchführung</title><section id="sub-8.1"><label>8.1</label><title>Vorbereitung des Glasfiltertiegels</title></section><section id="sub-8.2"><label>8.2</label><title>Einwaage</title></section><section id="sub-8.3"><label>8.3</label><title>Bestimmung</title></section></section><section id="sub-9"><label>9</label><title>Berechnung</title></section><section id="sub-10"><label>10</label><title>Präzision</title><section id="sub-10.1"><label>10.1</label><title>Wiederholgrenze</title></section><section id="sub-10.2"><label>10.2</label><title>Vergleichgrenze</title></section></section><section id="sub-11"><label>11</label><title>Untersuchungsbericht</title></section><section id="sub-a"><label>Anhang A</label><title>Statistische Ergebnisse von Ringversuchen an Tee (informativ)</title></section><section id="sub-na"><label>Anhang NA</label><title>Literaturhinweise (informativ)</title></section></toc>