<?xml version="1.0" encoding="UTF-8"?><toc><section id="sec_foreword"><title>Foreword</title></section><section id="sec_intro"><title>Introduction</title></section><section id="sec_1"><label>1</label><title>Scope</title></section><section id="sec_2"><label>2</label><title>Normative references</title></section><section id="sec_3"><label>3</label><title>Symbols and units</title></section><section id="sec_4"><label>4</label><title>Test pieces and sample preparation</title><section id="sec_4.1"><label>4.1</label><title>Test piece size and sampling</title></section><section id="sec_4.2"><label>4.2</label><title>Surface preparation</title></section><section id="sec_4.3"><label>4.3</label><title>Surface condition</title></section></section><section id="sec_5"><label>5</label><title>Apparatus</title><section id="sec_5.1"><label>5.1</label><title>General</title></section><section id="sec_5.2"><label>5.2</label><title>Indentation</title></section><section id="sec_5.3"><label>5.3</label><title>Indentation and crack measurement</title></section></section><section id="sec_6"><label>6</label><title>Procedure and conditions of testing</title><section id="sec_6.1"><label>6.1</label><title>Indentations</title></section><section id="sec_6.2"><label>6.2</label><title>Indentation and crack length measurement</title></section><section id="sec_6.3"><label>6.3</label><title>Test validity</title></section></section><section id="sec_7"><label>7</label><title>Analysis</title><section id="sec_7.1"><label>7.1</label><title>Vickers hardness</title></section><section id="sec_7.2"><label>7.2</label><title>Toughness</title></section></section><section id="sec_8"><label>8</label><title>Measurement uncertainty</title></section><section id="sec_9"><label>9</label><title>Test report</title></section><section id="sec_A"><label>Annex A</label><title>Report pro forma — Palmqvist toughness measurements on hardmetals (informative)</title><section id="sec_A.1"><label>A.1</label><title>General</title></section><section id="sec_A.2"><label>A.2</label><title>Report pro forma</title></section></section><section id="sec_bibl"><title>Bibliography</title></section></toc>