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Trial Number 1

Trial Purpose:

To evaluate additional products using ultrasonic energy on the first supplied soil.

Date Run:

06/18/2008

Experiment Procedure:

Four products were selected from the lab's on-line database, www.cleanersolutions.org, based on supplied information from client. Four from the previous trial were selected on performance on the supplied soil. Each product was diluted to 5% using DI water in 600 ml glass beakers. Solutions were heated to 130 F on immersed in a heat bath in a Branson 40 kHz ultrasonic tank. Products were degassed for five minutes.

Twenty-four preweighed steel coupons were coated with the Castrol Industrial Inc Safety Draw 722X (61788-76-9, 64742-54-7) using a swab. Coupons were weighed a second time to determine the amount of soil added. Three coupons were immersed into each product and cleaned for 5 minutes using ultrasonic agitation. Following cleaning, coupons were rinsed for 15 seconds in tap water at 120 F and dried using air blow off for 30 seconds at room temperature. Final weights were recorded, and efficiencies were calculated.

Trial Results:

The addition of ultrasonic energy improved cleaning results for the four previously tested products. The additional four products also were found to be effective as well. Of the eight products, seven removed over 80% of the Safety Draw within 5 minutes of cleaning. Four of these products removed more than 98%. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
Surface Cleanse 930 0.5202 0.0915 82.41
  0.4321 0.1184 72.60
  0.8422 0.0832 90.12
SC Aircraft 0.3650 0.2384 34.68
  0.3672 0.0276 92.48
  0.8338 0.1527 81.69
M Aero 0.6852 0.0221 96.77
  0.7399 0.0010 99.86
  0.3940 0.0086 97.82
Polyspray Jet 790 xs 0.7679 0.0104 98.65
  0.3692 0.0014 99.62
  0.5347 -0.0010 100.19
Metalnox M6310 0.3681 0.0865 76.50
  0.5443 0.0561 89.69
  0.3304 -0.0075 102.27
Daraclean 282 GF 0.7463 0.0104 98.61
  0.5848 0.0046 99.21
  0.4377 0.0065 98.51
Micro 90 0.7452 0.0239 96.79
  0.7318 0.0881 87.96
  0.5172 0.1007 80.53
Luminox 0.4334 0.0109 97.49
  0.9377 0.0241 97.43
  0.6763 0.0030 99.56

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

The seven top performing products will be evaluated on the second supplied contaminant using ultrasonic cleaning.

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