Trial #4

Trial #4

To evaluate client requested cleaners based on Vendor supplied information.

1999

7

4

36

37

Coupon

08/16/1999

5.00

Immersion/Soak

Jason Marshall

Aluminum
Copper
Nickel
Stainless Steel

Cutting/Tapping Fluids
Greases
Inks
Lubricating/Lapping Oils
Oil

Tap water rinse

Air dry

Gravimetric

The cleaners used were 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.

SUBSTRATE MATERIAL: 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

CONTAMINATING PROCESS USED: All contaminants were applied to coupons using handheld swabs.

The all-purpose cleaner was very successful in removing the grease and oil.  The cleaner was only moderately capable of cleaning the lubricant and unsuccessful in removing the ink.  The industrial degreaser was only effective in removing the grease.  This cleaner was only partially able to remove the lubricant and oil and had no success in cleaning the ink.  Table 2 lists the cleaner and the calculated efficiencies for each contaminant.

Table 2.  Cleaning Product Results by Substrate and Contaminant

Partial success was obtained for each of the two cleaners evaluated.  Both were effective in removing the grease.  The all-purpose cleaner was also successful in removing the oil.  All other contaminants were less than 75% cleaned from the substrates.

No relation