Browse Client Types

Browse past lab clients by general industry sectors

Trial Number 1

Client Number 281

Project Number 1

Trial Purpose:

To evaluate product performance from collected samples from three locations.

Date Run:

08/09/2007

Experiment Procedure:

Twelve samples from three locations (four from each) were emptied into 200 ml beakers and used at room temperature. 

Thirty-six preweighed coupons were coated with a composite soil made from the filtration bags collected at the three sites. The contaminant mix was allowed to dry on the coupons for one hour. After this drying, a second weight was recorded to determine the amount of soil added. Three coupons were immersed into each sample and cleaned for 5 minutes using no agitation. At the end of the cleaning, coupons were rinsed for 15 seconds in tap water and dried using compressed air at room temperature. Once the coupons were dry, the final weights were recorded, and efficiencies were calculated.

Trial Results:

There were no major differences in the cleaning efficiencies for all the samples from each site. The second and third samples collected from Flahertys were the only samples to have efficiencies lower than 99%. 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
Bergdales 1 1.6657 0.0021 99.87
  0.9887 0.0050 99.49
  2.0118 0.0092 99.54
Bergdales 2 1.6843 0.0035 99.79
  1.2647 0.0062 99.51
  1.7972 0.0075 99.58
Bergdales 3 2.2490 0.0054 99.76
  0.9844 0.0062 99.37
  0.9878 0.0075 99.24
Bergdales 4 2.7094 0.0020 99.93
  2.5287 0.0028 99.89
  2.9671 0.0015 99.95
Flahertys 1 2.6645 0.0028 99.89
  3.0010 0.0027 99.91
  0.9261 0.0096 98.96
Flahertys 2 1.8439 0.0041 99.78
  1.2544 0.1078 91.41
  2.1711 0.0118 99.46
Flahertys 3 1.3692 0.0080 99.42
  1.1305 0.0097 99.14
  0.8593 0.0353 95.89
Flahertys 4 1.5257 0.0037 99.76
  1.7370 0.0071 99.59
  1.1154 0.0170 98.48
Syversons 1 1.0805 0.0108 99.00
  0.9018 0.0070 99.22
  0.9830 0.0114 98.84
Syversons 2 1.0158 0.0071 99.30
  1.2075 0.0049 99.59
  1.1348 0.0056 99.51
Syversons 3 0.6597 0.0078 98.82
  1.6695 0.0027 99.84
  1.3224 0.0049 99.63
Syversons 4 1.0143 0.0073 99.28
  0.7560 0.0022 99.71
  1.3931 0.0023 99.83

Success Rating:

A cleanliness study, addressing only various analytical techniques.

Conclusion:

Cleaning effectiveness was determined to be nearly the same from sample to sample and from site to site. The four samples from Bergdales averaged 99.66% removal, the samples from Flahertys removed 98.47% and the four from Syversons resulted in 99.38% removed.

Save Report as a PDF