To eliminate the use of N-Propyl Bromide in cleaning opereations
Date Run:
02/29/2016
Experiment Procedure:
Four cleaners were tested at room temperature on aluminum, brass, and stainless-steel coupons to evaluate how the soil Navi Guard Way Lube 32 was cleaned. Preweighed coupons were coated with the supplied Navi Guard soil using a handheld 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 sir dry for 15 minutes and then placed on a tray. There was no rinse. Once dry, final weights were measured and efficiency calculated for each coupon cleaned.
Trial Results:
Cleaner
Substrate
Initial Wt
Final Wt
% Removed
Fluosolv CX
Aluminum
21.5357
21.5362
98.73
Aluminum
21.5777
21.5790
96.95
Aluminum
21.5357
21.5362
98.73
Brass
69.4516
69.4517
99.51
Brass
69.5391
69.5396
98.05
Brass
69.6129
69.6129
100.00
Stainless
60.1003
60.1009
97.35
Stainless
63.9329
63.9331
99.45
Stainless
63.8901
63.8941
90.85
Fluosolv NC
Aluminum
21.0619
21.0619
100.00
Aluminum
21.1997
21.1997
100.00
Aluminum
21.1747
21.1749
99.58
Brass
69.4374
69.4375
99.83
Brass
69.3301
69.3302
99.69
Brass
49.5338
49.5341
99.38
Stainless
59.5762
59.5787
97.61
Stainless
59.1224
59.1268
93.69
Stainless
60.0314
60.0339
94.49
Honeywell PF
Aluminum
21.6234
21.6238
99.38
Aluminum
21.4832
21.4841
98.98
Aluminum
21.5779
21.5782
99.65
Brass
49.4789
49.4808
98.25
Brass
49.4186
49.4188
99.76
Brass
49.5329
49.5337
99.19
Stainless
60.4422
60.4437
98.39
Stainless
59.4621
59.4644
94.81
Stainless
58.9557
58.9571
97.94
Honeywell PF-2A
Aluminum
21.4990
21.5008
97.69
Aluminum
21.0991
21.0993
99.66
Aluminum
21.6885
21.6886
99.82
Brass
49.5435
49.5443
98.97
Brass
69.5289
69.5300
98.79
Brass
69.4467
69.4493
96.57
Stainless
63.9052
63.9112
92.45
Stainless
63.9679
63.9681
96.15
Stainless
59.5294
59.5317
97.62
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 Navi Guard soil on all three substrates at room temperature. The least efficient cleaner used was Solstice 2A from Honeywell, with the lowest cleaning average on the stainless-steel substrate. The Solstice 2A was still an efficient cleaner with a 97.52% efficiency but was less efficient than the other cleaners used. The most efficient cleaner would be Solstice PF from Honeywell which had an efficiency of 98.48%. All cleaners worked extremely well.
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