SR ISO 7935:2024

<p class="MsoBodyText"><span lang="EN-GB">This document specifies a method for the determination of sulfur dioxide (SO₂) in flue gases of stationary sources and describes the fundamental structure and the key performance characteristics of automated measuring systems.</span></p> <p class="MsoBodyText"><span lang="EN-GB">The method allows continuous monitoring with permanently installed measuring systems of SO₂ emissions.</span></p> <p class="MsoBodyText"><span lang="EN-GB">This document describes extractive systems and in situ (non-extractive) systems in connection with a range of analysers that operate using, for example, the following principles:</span></p> <p class="ListContinue1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">non-dispersive infrared absorption (NDIR);</span></p> <p class="ListContinue1" style="mso-list: