<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
	mads.xsd"><authority><topic authority="http://digilab.ptb.de/vocab/">law on metrology</topic></authority><related type="other"><topic>metrology</topic></related><related type="other"><topic>legal units of measurement</topic></related><related type="other"><topic>legal control of measuring instruments</topic></related><related type="other"><topic>metrological supervision</topic></related><related type="other"><topic>measuring instrument</topic></related><related type="broader"><topic>Metrology and its legal aspects</topic></related> <note xml:lang="en">&lt;div class=&quot;ui-collapsible-content ui-body-inherit&quot; aria-hidden=&quot;false&quot;&gt;
&lt;p class=&quot;NoteEx&quot;&gt;Note Legal acts and secondary legislation in particular specify the &lt;span class=&quot;AnchorInNote&quot;&gt;legal units of measurement&lt;/span&gt;, prescribe&lt;/p&gt;
&lt;p class=&quot;NoteEx&quot;&gt;• requirements with respect to the properties of &lt;span class=&quot;AnchorInNote&quot;&gt;measuring instruments&lt;/span&gt;,&lt;/p&gt;
&lt;p class=&quot;NoteEx&quot;&gt;• accuracy of measurement in cases specified by law,&lt;/p&gt;
&lt;p class=&quot;NoteEx&quot;&gt;• a system of &lt;span class=&quot;AnchorInNote&quot;&gt;legal control of measuring instruments&lt;/span&gt;, and&lt;/p&gt;
&lt;p class=&quot;NoteEx&quot;&gt;• &lt;span class=&quot;AnchorInNote&quot;&gt;metrological supervision&lt;/span&gt;.&lt;/p&gt;
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