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Thermo Scientific™ Orion™ ISE Filling Solutions

Enhance the performance and extend the life of your ion selective electrodes.

$132.35 - $345.53



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Products ${productFamilyLength}
Catalog Number Mfr. No. Description Price Quantity  
Catalog Number Mfr. No. Description Price Quantity  
13-641-846 Thermo Scientific™
Fill Solution for Sodium ISE Pack of 5 Each for $244.09
13-641-847 Thermo Scientific™
Fill Solution for Sodium ISE with Low Sodium Sample Levels Pack of 5 Each for $249.89
13-641-903 Thermo Scientific™
Fill Solution for Chloride ISE Pack of 5 Each for $182.49
13-642-576 Thermo Scientific™
Fill Solution For Ammonium ISE Each for $246.02
13-641-953 Thermo Scientific™
Optimum Results F Fill Solution for Nitrate and Nitrite ISE Pack of 5 Each for $190.35
13-642-632 Thermo Scientific™
Optimum Results A Fill Solution for Cadmium, Calcium, Fluoride and Sulfide ISE Pack of 5 Each for $207.27
13-642-633 Thermo Scientific™
Optimum Results B Fill Solution for Chloride, Cyanide, Lead and Silver/Sulfide ISE Each for $207.27
13-641-161 Thermo Scientific™
Optimum Results D Fill Solution for Bromide, Cupric and Iodide ISE Pack of 5 Each for $144.13
13-642-634 Thermo Scientific™
Optimum Results C Fill Solution for Silver ISE Each for $345.53
13-641-766 Thermo Scientific™
Fill Solution for Carbon Dioxide ISE Each for $169.51
13-641-928 Thermo Scientific™
Fill Solution For Ammonia ISE Each for $144.13
13-642-951 Thermo Scientific™
Fill Solution For Ammonia High Performance ISE Each for $132.35
13-641-936 Thermo Fisher Sci, Wai
Fill Solution for Nitrogen Oxide ISE Each for $228.58


Enhance the performance and extend the life of your ion selective electrodes with Thermo Scientific™ Orion™ ISE Filling Solutions. These solutions are specially formulated to work with the recommended ion selective electrodes and prevent electrode interferences from filling solution.


  • Filling/maintenance solutions are for use with Thermo Scientific™ Orion™ Ion Selective Electrodes (ISE)
  • Optimum Result™ ISE filling solutions are specially designed for the Ionplus™ series ion selective electrodes

Ordering Information:

  • Packaged as set of five 2 oz. (5 x 60mL) bottles, except Cat. No. 951209, 951202 and 950202 packaged as one 2 oz. (60mL) bottle and Cat. No. 954602 packaged as one 1.6 oz. (50mL) bottle


The following part number has been changed due to a recent system upgrade:

Old Part Number: 900018

New Part Number: 900018-WA

Please use the new part number when placing an order or requesting a quote. The old and new part numbers are interchangeable on Certificate of Analysis and Material Data Safety Sheet (MSDS) files.

Warranty: Out of box

Description & Specifications