Folgende Warnungen sind aufgetreten:
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Warning [2] Trying to access array offset on value of type null - Line: 2 - File: inc/plugins/sidebox.php(494) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined variable $theme - Line: 2 - File: inc/plugins/sidebox.php(545) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Trying to access array offset on value of type null - Line: 2 - File: inc/plugins/sidebox.php(545) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined variable $theme - Line: 2 - File: inc/plugins/sidebox.php(545) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Trying to access array offset on value of type null - Line: 2 - File: inc/plugins/sidebox.php(545) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined variable $theme - Line: 2 - File: inc/plugins/sidebox.php(551) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Trying to access array offset on value of type null - Line: 2 - File: inc/plugins/sidebox.php(551) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined variable $theme - Line: 2 - File: inc/plugins/sidebox.php(551) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Trying to access array offset on value of type null - Line: 2 - File: inc/plugins/sidebox.php(551) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "fullsubject" - Line: 4 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumname" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "fullsubject" - Line: 4 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php 691 eval
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Warning [2] Undefined array key "forumlink" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php 691 eval
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Warning [2] Undefined array key "forumname" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "lastpostlink" - Line: 7 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "fullsubject" - Line: 4 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumlink" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumname" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "lastpostlink" - Line: 7 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "fullsubject" - Line: 4 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumlink" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumname" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "lastpostlink" - Line: 7 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "fullsubject" - Line: 4 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumlink" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Fklmh e.V.   ›   FKLMH-Fachbereiche   ›   Reinigung/Desinfektion   ›   Bestimmung der Konzentration von Reinigungsmitteln?

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Bestimmung der Konzentration von Reinigungsmitteln?
AdministratorFeinschmecker
studiosi
****
Registriert seit: Sep 2000
Beiträge: 92

Bewertung: 0
#14
07.02.2006, 17:10
Um die

Konzentration von Reinigungs- und Desinfektionsmitteln zu bestimmen, kann man übrigens auch

den Leitwert messen. Das geht einfach und schnell. Die Leitwertmeßzelle wird (wie ein

pH-Meter) in die Lösung getaucht und der Leitwert ermittelt. Anhand des Leitwerts kann dann

im Diagramm die Konzentration abgelesen werden. Johnson Diversey und Ecolab haben diese

Diagramme für ihre Produkte.

Es gibt Konduktometer für's Labor und auch welche im

Taschenformat, mit denen man direkt vor Ort messen kann.
  Zitieren


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