To evaluate effective alternatives on the sixth supplied contaminant.
Date Run:
05/17/2007
Experiment Procedure:
Five products from the previous trial were selected and used at full strength based on past performances. The cleaning solutions were all heated to 130 F on a hot plate.
Fifteen preweighed alloy coupons were coated with the sixth contaminant and weighed a second time to determine the amount of contaminant added to each coupon. Three coupons were immersed into each solution and cleaned for 5 minutes using stir-bar agitation. Coupons were rinsed in room temperature tap water for 15 seconds and air dried using compressed dry air for 30 seconds. A final weight was recorded, and efficiencies were calculated for each coupon cleaned.
Trial Results:
All five products removed over 92% of the lubricant. Three removed over 95% and one of these (DS 108) removed over 97%. The table below lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
Soy Gold 1100
0.6604
0.0227
96.56
0.7529
0.0258
96.57
0.4799
0.0346
92.79
Solsafe 245
0.4885
0.0197
95.97
0.5469
0.0269
95.08
0.5791
0.0279
95.18
Shopmaster RC
0.4321
0.0467
89.19
1.4430
0.0325
97.75
0.4722
0.0505
89.31
DS 108
0.4749
0.0130
97.26
0.4202
0.0135
96.79
0.6765
0.0140
97.93
D Greeze 500 LO
0.3274
0.0223
93.19
0.4527
0.0240
94.70
0.4694
0.0234
95.01
Success Rating:
A follow up test, usually based on company input.
Conclusion:
The five products should be retested on the fourth and fifth contaminants with modified operating conditions to improve cleaning efficiency.
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