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Trial Number 8

Trial Purpose:

To evaluate products at higher concentrations and longer times on cutting fluid.

Date Run:

05/21/2008

Experiment Procedure:

Three products from previous lab testing were used at 20% dilution and one was used at five percent. Preweighed coupons were coated with the supplied cutting fluid (WA wood, 57 F Cutting oil) using a hand held swab and weighed a second time to determine the amount of soil added.

Each cleaner was put in a bowl and three coupons were dunked into the solution at a constant rate for 30 seconds of cleaning. The coupons were then put on a tray and when done and allowed to air dry. There was no rinse. The process was done to as closely replicate the process used on site as possible. Once dry, final weights were recorded and efficiency calculated for each coupon cleaned.

A second batch of coupons were cleaned for 1 minute following all other procedures. An additional three products were included in the evaluation at 20% dilutions.

Trial Results:

The 20% solution at 30 seconds were still ineffective on the grinding fluid. However, the increased cleaning time (1 minute) improved the results of one of the products removing 70% of the contaminant. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned at both time lengths.

30 Second Cleaning Cutting Fluid

Cleaner Initial wt  Final wt % Removed
Shopmaster LPH 0.1656 0.1691 -2.11
  0.3368 0.2371 29.60
  0.3971 0.2072 47.82
Shopmaster HP 0.2231 0.1682 24.61
  0.2474 0.1883 23.89
  0.5608 0.2226 60.31
Bio T 300 B 0.4343 0.2278 47.55
  0.4375 0.1765 59.66
  0.4345 0.2044 52.96

1 Minute Cleaning Cutting Fluid

Cleaner Initial wt  Final wt % Removed
SC Aircraft 0.4834 0.1541 68.12
  0.5838 0.1508 74.17
  0.4597 0.1502 67.33
Inproclean 3800 0.2482 0.083 66.56
  0.3524 0.1263 64.16
  0.3248 0.1691 47.94
Aquavantage 1400 GD  0.5265 0.1646 68.74
  0.5438 0.1725 68.28
  0.3860 0.2117 45.16
Shopmaster LPH 0.2909 0.1386 52.35
  0.3697 0.2190 40.76
  0.5554 0.2282 58.91
Shopmaster HP 0.3101 0.1072 65.43
  0.2714 0.1213 55.31
  0.3428 0.1536 55.19
Bio T 300 B 0.1879 0.1681 10.54
  0.3201 0.2395 25.18
  0.3086 0.1689 45.27

Success Rating:

A follow up test, usually based on company input.

Conclusion:

Only one product, SC Aircraft & Metal Cleaner, had partial success, removing about 70% of the cutting fluid.

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