<?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>Expression of leakage</title></section><section id="sec_5"><label>5</label><title>Gas to be used for the tests</title><section id="sec_5.1"><label>5.1</label><title>General</title></section><section id="sec_5.2"><label>5.2</label><title>Type tests</title></section><section id="sec_5.3"><label>5.3</label><title>Routine tests</title></section></section><section id="sec_6"><label>6</label><title>Test pressure</title><section id="sec_6.1"><label>6.1</label><title>Regulators</title></section><section id="sec_6.2"><label>6.2</label><title>Other equipment</title><section id="sec_6.2.1"><label>6.2.1</label><title>Type tests</title></section><section id="sec_6.2.2"><label>6.2.2</label><title>Routine test</title></section></section></section><section id="sec_7"><label>7</label><title>Maximum permissible external gas leakage rates at the above defined pressures</title><section id="sec_7.1"><label>7.1</label><title>Regulators</title></section><section id="sec_7.2"><label>7.2</label><title>Blowpipes</title></section><section id="sec_7.3"><label>7.3</label><title>Safety devices</title></section><section id="sec_7.4"><label>7.4</label><title>Quick action couplings</title></section><section id="sec_7.5"><label>7.5</label><title>Devices with combined functions</title></section><section id="sec_7.6"><label>7.6</label><title>Hose assembly</title></section><section id="sec_7.7"><label>7.7</label><title>Other equipment</title></section></section><section id="sec_8"><label>8</label><title>Measurement of the leakage rate</title><section id="sec_8.1"><label>8.1</label><title>General</title></section><section id="sec_8.2"><label>8.2</label><title>Principle of the method</title></section><section id="sec_8.3"><label>8.3</label><title>Test apparatus for immersion method</title></section><section id="sec_8.4"><label>8.4</label><title>Procedure</title></section></section><section id="sec_A"><label>Annex A</label><title>Correction of measurements (normative)</title></section><section id="sec_B"><label>Annex B</label><title>Test methods for blowpipes (normative)</title></section></toc>