National foreword<br>National Annex NA (informative) - Bibliography<br>Foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 Principles of characterization of discontinuities<br>4 Pulse echo techniques<br>5 Transmission technique<br>Annex A (normative) - Analysis of multiple indications<br>Annex B (normative) - Techniques for the classification <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of discontinuity shape<br>Annex C (informative) - Maximum echo height sizing <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;technique<br>Annex D (normative) - Probe movement sizing techniques<br>Annex E (normative) - Iterative sizing technique<br>Annex F (normative) - Mathematical algorithms for the <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;estimation of the actual size of a Discontinuity<br>Annex G (informative) - Examples of special sizing <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;techniques