Foreword<br>Introduction<br>1 Scope<br>2 Normative references <br>3 Apparatus<br>4 Sampling and preparation of test pieces<br>5 Test procedures<br>&nbsp;&nbsp;5.1 Procedure 1 - Determination of apparent hardness <br>&nbsp;&nbsp;5.2 Procedure 2 - Determination of microhardness <br>6 Expression of results<br>&nbsp;&nbsp;6.1 Apparent hardness<br>&nbsp;&nbsp;6.2 Microhardness<br>7 Repeatability and reproducibility<br>&nbsp;&nbsp;7.1 Vickers apparent hardness <br>&nbsp;&nbsp;7.2 Rockwell apparent hardness<br>&nbsp;&nbsp;7.3 Vickers microhardness<br>&nbsp;&nbsp;7.4 Precision statement <br>8 Test report<br>Annex A (normative) Test conditions and test loads as <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;well as symbols and designations for<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;microhardness values<br>Annex B (informative) Repeatability and reproducibility<br>Bibliography