To evaluate client supplied cleaning solution on all listed contaminants and one substrate.
Date Run:
08/11/1999
Experiment Procedure:
The cleaning solution was diluted to10% using DI water in a 600 mL beaker. The solution was heated to 130 F. Coupons were cleaned for five minutes. Rinsing was performed for two minutes using tap water at 120 F and air dried for about two hours also at room temperature. After drying is complete, final weights are recorded and efficiencies are calculated.
SUBSTRATE MATERIAL: 1-Nickel/Copper (202-715); 2-Stainless Steel (202-410 B-85)
CONTAMINANTS: Table 1 lists the contaminants and the related CAS#s for this trial.
Table 1. Contaminants Cleaned
Contaminant CAS #
Oil 64741-89-5
Lubricant 64742-47-8, 9003-29-6
Ink 67-63-0, 108-88-3, 9004-70-0, 141-78-6, 64-17-5, 109-60-4
Grease 64742-47-8 Adhesive 9010-98-4, 65997-13-9, 68083-03-4, 67-56-1, 1314-13-2, 119-47-1, 108-88-3, 8052-10-6
Trial Results:
The Concrete/Graffiti remover was successful in removing the oil and lubricant from the surface, but may have caused some damage to the substrate, but could not be visual detected. Further compatibility tests could be performed to determine the extent of damage being done to the metal. The cleaner was not very successful in removing the grease and ink. Most of the adhesive was cleaned from the surface. Table 2 lists the percent removal for each contaminant. The All purpose cleaner removed moderate amounts of the oil, lubricant and ink. The cleaner was very efficient in removing the grease and adhesive. Table 2 also lists the cleaning results from the All purpose cleaner.
Table 2. Cleaning Efficiencies
Contaminant
Concrete/Graffiti
All Purpose
Oil
102
78
Lubricant
102
80
Ink
37
75
Grease
66
94
Adhesive
86
96
Success Rating:
A follow up test, usually based on company input.
Conclusion:
The two cleaners evaluated had some success in removing the contaminants recommended by the manufacturer. All Purpose cleaner was more consistent than the Concrete/Graffiti Remover in the amount of soil cleaned from the coupons.
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