Trial Purpose:
To evaluate successful cleaners at lower concentrations.
Date Run:
12/14/2004Experiment Procedure:
The top two products from the previous trials were diluted with DI water to two concentrations, 5 and 2.5%. The products were then heated to 200 F on a hot plate. The client's current cleaner was also used at 3% at the same temperature.
Fifteen preweighed stainless steel coupons were coated with the supplied cotton seed oil/starch mix and allowed to sit for 24 hours. Coupons were then weighed a second time to determine the amount of soil that was added. Three coupons were cleaned in each product for sixty minutes with no agitation. Cleaning was followed by a 15 second rinse in a tap water bath at 120 F and air blow off for 30 seconds at room temperature. Once dry, coupons were weighed a third time and efficiencies were calculated for each product tested.
Trial Results:
The Organic Cleaner/Degreaser at both concentrations worked as well as the client's current cleaner, removing over 98% of the oil after an hour of soaking at 200 F. Both concentrations of VPW SC1000 removed over 96% of the oil/starch mix. The table below lists the amount of soil added, the amount remaining and the percent removed for each coupon cleaned.
| Cleaner | Initial wt | Final wt | % Removed |
| Liquid Chembrite | 0.4222 | 0.0003 | 99.93 |
| 0.2230 | 0.0037 | 98.34 | |
| 0.3036 | 0.0022 | 99.28 | |
| Organic D/C 5% | 0.3765 | 0.0016 | 99.58 |
| 0.3343 | 0.0036 | 98.92 | |
| 0.3145 | 0.0026 | 99.17 | |
| Organic D/C 2.5% | 0.1925 | 0.0013 | 99.32 |
| 0.3677 | 0.0032 | 99.13 | |
| 0.1455 | 0.0021 | 98.56 | |
| VPW SC 1000 5% | 0.4527 | 0.0094 | 97.92 |
| 0.3108 | 0.0157 | 94.95 | |
| 0.3669 | 0.0073 | 98.01 | |
| VPW SC 1000 2.5% | 0.3897 | 0.0070 | 98.20 |
| 0.3775 | 0.0168 | 95.55 | |
| 0.4202 | 0.0128 | 96.95 |
Success Rating:
A follow up test, usually based on company input.Conclusion:
The products will be tested on supplied contaminated coupons under similar conditions.
