Trial #9
Cleanliness analysis results for impeller shafts
There are no related objects.
There are no related objects.
There are no related objects.
There are no related objects.
I just finished analyzing the impeller shafts that you sent me the other week. The readings on this batch of parts seem to make a lot more sense than the previous readings. Both the alcohol soak and the Dow Corning OS10 soak removed some of the contamination to a degree, but it still looks like the vapor degreaser does a much better job.
| FTIR & OSEE RESULTS
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| for C.R. Bard, Inc.
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| Part Type
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Peak Height (% Transmittance)
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OSEE Average
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| 1/* Precision Ball
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|
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| Dirty
|
0.0734
|
73.88
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| Vapor Degreased
|
0.0514
|
109.00
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| Alcohol Soak
|
0.0506
|
94.75
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| 11 Fr. Spring
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| Dirty
|
0.0690
|
119.90
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| Vapor Degreased
|
0.0508
|
177.10
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| Alcohol Soak
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0.0385
|
145.70
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| J Pins
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| Dirty
|
0.0356
|
83.57
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| Vapor Degreased
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0.0309
|
131.57
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| Alcohol Soak
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0.0000*
|
190.83
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| Short Pins
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| Dirty
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0.1500
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| Vapor Degreased
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0.0462
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| Alcohol Soak
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0.0484
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| Impeller Plates
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| Dirty
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0.5930
|
276.90
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| Vapor Degreased
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0.1610
|
458.90
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| Alcohol Soak
|
0.0556
|
561.75
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| Alcohol Soak & Wipe
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0.0416
|
783.30
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| Impeller Shafts
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| Dirty
|
0.0800
|
140.90
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| Passivated
|
0.0472
|
163.11
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| Passivated and Alcohol Soaked
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0.9010
|
139.33
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| Vapor Degreased
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0.0000*
|
191.30
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| Alcohol Soak
|
0.1000
|
112.25
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| Alcohol Soak & Wipe
|
0.0940
|
87.88
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| Impeller Shafts sent on 10/3**
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| Dirty
|
0.3900
|
16.13
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| Vapor Degreased
|
0.0820
|
192.44
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| Alcohol Soak
|
0.1260
|
55.9
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| Dow Corning OS-10 Soak
|
0.1180
|
54.2
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| 11 Fr. Stylet Wires recieved on 10/28***
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| Dirty
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0.07224
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| Vapor Degreased
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0.05232
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| Wipe with Green Thunder
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0.08385
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| Alcohol wipe
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0.05239
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| * FTIR reading of 0 corresponds to no contamination remaining
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| ** Second set were measured with 6 drops of contaminated solvent instead of one
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| *** Fr wires were measured with 20 drops of contaminated solvent instead of one
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If you have any questions, please do not hesitate to call.
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