Trial #5
Cleanliness measurement of parts cleaned by client
There are no related objects.
There are no related objects.
Three sets of parts were measured using an OSEE instrument. Each set contained six parts chosen at random. One reading was made for each part and the average OSEE reading was determined. The resultant values were compared to results from previous trials.
SUBSTRATE MATERIAL: Stainless Steel parts
CONTAMINANTS: C-Eblis oil (sulfur based)
Consistent readings were obtained for all the parts tested. Table 1 lists the readings for the three sets as well as the calculated average.
Table 1. OSEE Readings of cleaned parts
| Set 1
|
Set 2
|
Set 3
|
|
| 155
|
146
|
160
|
|
| 164
|
161
|
169
|
|
| 156
|
156
|
172
|
|
| 173
|
154
|
169
|
|
| 153
|
182
|
162
|
|
| 162
|
160
|
144
|
|
| 160.5
|
160
|
163
|
Average
|
|
|
|
161
|
Overall Ave
|
Comparing these values to the results from the previous values reveals that this weeks parts are not as clean as the others. Table 2 lists the three weeks of data.
Table 2. Overall Comparison of Parts Cleaned
| New Bath
|
2-Week Old Bath
|
This Week’s Bath
|
| 1343
|
196
|
161
|
OSEE readings can be used to determine a relative cleanliness of parts. The lower the OSEE value, the dirtier the part. In order to further justify this conclusion a cleaning trial will be conducted to relate percent removal to the OSEE readings.
No relation