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Production problem encountered using a solvent drying plant.

Journal (Institute of Sterile Services Management)

|March 10, 1989

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A persistent surfactant separation issue in Arklone W solvent impacted surgical instrument cleaning. Frequent solvent replacement was necessary to maintain system productivity, though ICI provided free solvent.

Area of Science:

Materials Science
Chemical Engineering
Medical Device Sterilization

Background:

The Automatic Surgical Instrument Cleaning and Solvent Drying System utilized Arklone W.
The system operated without significant issues from August 1983 to May 1986.

Purpose of the Study:

To document and address the persistent separation of surfactants in Arklone W.
To understand the implications of this separation on the cleaning system's operation.

Main Methods:

Observation of surfactant separation in Arklone W, forming a surface scum.
Continuous replacement of contaminated solvent with fresh solvent to maintain productivity.

Main Results:

Persistent separation of surfactants in Arklone W occurred starting May 1986.

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Frequent solvent replenishment was required, proving time-consuming.

No additional material costs were incurred due to free solvent supply by ICI.

Conclusions:

The surfactant separation in Arklone W posed a significant operational challenge.
Maintaining system productivity necessitated a labor-intensive solvent replacement strategy.
Supplier support (ICI) mitigated the financial impact of the solvent issue.