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Trial Number 3

Trial Purpose:

To evaluate client requested cleaner based on Vendor supplied information.

Date Run:

08/17/1999

Experiment Procedure:

The cleaner used was diluted to 5% using DI water in 600 ml beakers. Cleaning of the coupons was performed using stir-bar agitation at room temperature for five minutes. Coupons were rinsed using tap water at 120 F for two minutes and dried at room temperature for two hours. Gravimetric analysis was used to determine effectiveness. The small piece of buffing compound was immersed into a vial containing the 5% solution at room temperature. Cleaning lasted for 30 minutes with no rinse or dry. Visual analysis was performed to determine if the cleaner was effective in dissolving the contaminant.

SUBSTRATE MATERIAL: Liquid, Aluminum Coupons (202-2024 T-3), Nickel/Copper Coupons (202-715), Stainless Steel Coupons (202-316B-80)
CONTAMINANTS: Table 1 lists the contaminants and their CAS#s

Table 1. Contaminants Used

Contaminant  CAS #  
coating 64742-47-8 64742-52-5
grease 64742-47-8  
lubricant 64742-47-8 9003-29-6
ink 67-63-0 9004-70-0
  108-88-3 109-60-4
  64-17-5 141-78-6
oil 64741-89-5  

CONTAMINATING PROCESS USED: The buffing compound was immersed in the cleaning solutions.  All others were applied to coupons using hand held swabs.

Trial Results:

The New Pig Degreaser was successful in removing the grease, lubricant and the oil from different substrates. It had difficulty in dissolving the buffing compound and had low efficiency in the cleaning the coating and ink. Table 2 lists the substrate, contaminant & CAS#s and the efficiencies associated with each.

Table 2. Cleaning Results

Hoofmark All Purpose Cleaner        
Substrate Substrate ID # Contaminant CAS # Efficiency
Aluminum 202-2024 T-3 grease 64742-47-8 100
Aluminum 202-2024 T-3 lubricant 64742-47-8 75
      64742-52-5  
Nickel/Copper 202-715 ink 64-63-0 2
      108-88-3  
      9004-70-0  
      109-60-4  
      64-17-5  
      141-78-6  
Stainless Steel 202-316B-80 oil 64741-89-5 93
Hoofmark Industrial Degreaser        
Substrate Substrate ID # Contaminant CAS # Efficiency
Aluminum 202-2024 T-3 grease 64742-47-8 91
Aluminum 202-2024 T-3 lubricant 64742-47-8 68
      9003-29-6  
Nickel/Copper 202-715 ink 67-63-0 1
      9004-70-0  
      108-88-3  
      109-60-4  
      64-17-5  
      141-78-6  
Stainless Steel 202-316B-80 oil 64741-89-5 61

Success Rating:

A follow up test, usually based on company input.

Conclusion:

New Pig Degreaser was found to be effective in removing some of the contaminants tested. Grease, lubricants and oils were easily removed using a 5% solution for five minutes at room temperature.

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