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Trial Number 146

Trial Purpose:

Laboratory evaluations of alternative cleaning products

Date Run:

01/15/2002

Experiment Procedure:

Degasing :Degasing the solution by keeping solutions in ultrasonic crest for 5 min at 120 F.
Cleaning : Ultrasonic for 2 min. at 120 F.
Rinsing : 1/2 min. manual with water at 120 F.
Contaminant: ITW, Dykem Corp, Ink, Steel Blue - DX - 100

Trial Results:

Only Grease Off 2 was found to be effective, but the ultrasonic cleaning increases the efficiency or the % contaminant removed significantly. For the PW 147, which was the most effective at ~15% removal for immersion cleaning, the ultrasonics increased the efficiency.

PW: This number is high but I conclude this cleaner is effective and not reacting with the stainless. (Coupons have been used in numerous trial and have background contaminants. Ultrasonics cleaned coupons, these 3, to near first trial weight (trial 131)

Success Rating:

Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.

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