National foreword<br>Foreword<br>Introduction <br>1 Scope <br>2 Normative references <br>3 Terms and definitions <br>4 List of procedures for periodic inspections <br> and tests<br>5 Inspection and tests<br>6 Stamp marking <br>7 Product and hazard identification <br>8 Colour coding <br>9 Documentation<br>Annex A (normative) - Procedure to be <br> adopted when a cylinder valve is <br> suspected to be obstructed<br>Annex B (normative) - Requirements for the <br> periodic inspection and test of acetylene <br> cylinder bundles<br>Bibliography