To eliminate the use of N-Propyl Bromide in cleaning opereations
Date Run:
02/29/2016
Experiment Procedure:
To evaluate possible immersion cleaning process for Brookfield compared to other cleaning solutions.
Four cleaners were tested at room temperature on aluminum, brass, and stainless-steel coupons to evaluate how the soil, Castrol Performance Bio NC Lite, was cleaned. Preweighed coupons were coated with the supplied Castrol soil using a hand held swab and weighed a second time to determine the amount of soil added. Each cleaner was put in a beaker and three coupons were immersed into the solution for 5 minutes. The coupons were then stood upright to air dry for 15 minutes at room temperature and then placed on a tray. There was no rinse. Once dry, final weights were recorded and efficiency calculated for each coupon cleaned.
Trial Results:
Cleaner
Substrate
Initial Wt.
Final Wt.
% Removed
Fluosolv CX
Aluminum
21.5088
21.5121
99.37
Aluminum
21.0991
21.1016
99.5
Aluminum
21.6899
21.6924
99.5
Brass
49.5352
49.5355
99.94
Brass
49.5439
49.5463
99.52
Brass
49.4807
49.4905
98.07
Stainless
63.8349
63.8485
97.3
Stainless
63.8935
63.8966
99.39
Stainless
63.8727
63.8992
95.01
Fluosolv NC
Aluminum
21.2000
21.2112
97.85
Aluminum
21.0624
21.0977
93.12
Aluminum
21.1745
21.1805
98.73
Brass
69.6143
69.6488
93.4
Brass
69.5401
69.6105
85.39
Brass
69.4532
69.4787
95.11
Stainless
60.0318
60.0735
92.06
Stainless
59.5635
59.5803
96.53
Stainless
63.9047
63.9308
94.98
Honeywell PF
Aluminum
21.6222
21.6260
99.18
Aluminum
21.5856
21.5913
98.91
Aluminum
21.5780
21.5831
98.98
Brass
69.4477
69.4621
97.08
Brass
69.5313
69.5440
97.63
Brass
69.4393
69.4414
99.58
Stainless
60.4416
60.4543
97.52
Stainless
59.4622
59.4645
99.54
Stainless
59.5306
59.5357
99.00
Honeywell PF-2A
Aluminum
21.5384
21.5388
99.92
Aluminum
21.4851
21.4880
99.40
Aluminum
21.6383
21.6383
100.00
Brass
49.5361
49.5536
96.48
Brass
49.4182
49.4206
99.52
Brass
69.3318
69.3511
96.22
Stainless
60.1052
60.1124
98.61
Stainless
58.9597
58.9599
99.96
Stainless
59.1281
59.1281
100.00
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
All four cleaners efficiently removed the Castrol soil on all three substrates at room temperature. The least efficient cleaner used was Fluosolv NC, with the lowest cleaning average on the brass substrate. The Fluosolv NC was still an efficient cleaner with a 94.13% efficiency, but less efficient than the other cleaners used. The most efficient cleaner would be Solstice 2A from Honeywell which had an efficiency of 98.90%.
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