National foreword<br>National Annex NA (informative) - Bibliography<br>Foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Requirements and classification<br>5 Test methods for assessing material properties<br>&nbsp;&nbsp;as measure of absorber performance<br>6 Tests for assessing the thermal stability of<br>&nbsp;&nbsp;absorber surfaces<br>7 Tests for determining the resistance to condensed<br>&nbsp;&nbsp;water of absorber surfaces<br>8 Test for determining absorber surface corrosion<br>&nbsp;&nbsp;resistance to high humidity air containing<br>&nbsp;&nbsp;sulfur dioxide<br>9 Test report<br>Annex A (normative) - Procedure for determination<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of solar absorption and thermal emittance of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;absorber surfaces<br>Annex B (normative) - Temperature and failure<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;time characteristics in assessment of thermal<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;stability of absorber surface<br>Annex C (normative) - Temperature/condensation<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;and failure time characteristics together with<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;qualification scheme in assessment of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;resistance to condensed water of absorber<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;surface<br>Annex D (informative) - Suitable designs for test<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;apparatus to be used in the qualification <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;testing of solar absorber surfaces<br>Bibliography