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Permanganate index
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<h2 id="see-also">See also</h2> <ul><li><a href="/facts/Permanganate/nJa04jVh">Permanganate</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Water quality -- Determination of permanganate index". ISO. Retrieved 23 November 2011. <a href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=15669" target="_blank">http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=15669</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> </ol>