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Thermo Scientific™ Orion™ pH Electrode Cleaning and Storage Solutions

Restore proper electrode performance and prolong electrode life using these pH electrode cleaning and storage solutions.

Manufacturer:  Thermo Scientific™ ORI911110

 View more versions of this product

Catalog No. 13-641-273



Restore proper electrode performance and prolong electrode life using Thermo Scientific™ Orion™ pH Electrode Cleaning and Storage Solutions in ready to use bottles.

Cleaning Solutions:

  • Solutions are identified by the letters A, B, C, and D; each letter designates a unique formulation
  • Cleaning solution A is for removing protein contaminants, cleaning solution B is for removing bacterial contaminants, cleaning solution C is for general cleaning and cleaning solution D is for removing oil and grease contaminants
  • Bottles include a small beaker to hold the solution and a plastic pipet to remove the old electrode filling solution


  • One bottle each of cleaning solutions A, B, C and D
  • One beaker
  • One pipet

Storage Solutions:

  • Storage solution ensures that the pH electrode works properly after prolonged storage, overnight storage and between samples


The following part numbers have been changed due to a recent system upgrade:

Old Part Number: 900021

New Part Number: 900021-WA

Old Part Number: 900022

New Part Number: 900022-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 Safety Data Sheet (MSDS) files



10 Pack of pH Electrode Rinse Solution Pouches
pH Electrode Rinse Solution
pH Electrode
Product Certifications

Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.