National foreword<br>European foreword<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Strength classes for pressure tubes<br>5 Test apparatus<br>6 Test<br>7 Test report<br>8 Marking of the pressure tube<br>Annex A (normative) - Product information<br>Annex B (informative) - Guide for choosing the <br> correct strength class