<?xml version="1.0" encoding="UTF-8"?><toc><section id="foreword.nat"><title>Vorwort</title><section id="sub-d30676950e121"><title>Änderungen</title></section><section id="sub-d30676950e136"><title>Frühere Ausgaben</title></section></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>Maße</title></section><section id="sub-4"><label>4</label><title>Bezeichnung</title></section><section id="sub-5"><label>5</label><title>Technische Lieferbedingungen</title></section><section id="sub-6"><label>6</label><title>Werkstoff</title></section><section id="sub-7"><label>7</label><title>Ausführung</title></section></toc>