<?xml version="1.0" encoding="UTF-8"?><toc><section id="sec_foreword"><title>Foreword</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>Terms and definitions</title></section><section id="sec_4"><label>4</label><title>Principle</title></section><section id="sec_5"><label>5</label><title>Reagents</title></section><section id="sec_6"><label>6</label><title>Apparatus</title></section><section id="sec_7"><label>7</label><title>Sampling</title><section id="sec_7.1"><label>7.1</label><title>General</title></section><section id="sec_7.2"><label>7.2</label><title>Preparation of the test sample</title></section></section><section id="sec_8"><label>8</label><title>Procedure</title></section><section id="sec_9"><label>9</label><title>Calculation</title></section><section id="sec_10"><label>10</label><title>Precision</title><section id="sec_10.1"><label>10.1</label><title>Interlaboratory test</title></section><section id="sec_10.2"><label>10.2</label><title>Repeatability</title></section><section id="sec_10.3"><label>10.3</label><title>Reproducibility</title></section></section><section id="sec_11"><label>11</label><title>Test report</title></section><section id="sec_A"><label>Annex A</label><title>Results of interlaboratory tests (informative)</title></section><section id="sec_bibl"><title>Bibliography</title></section></toc>