Browse past lab clients by general industry sectors
To determine cleaning efficiencies for various soil loadings.
Preweighed coupons were covered with the D-Greeze 500 spent cleaning solution and dried under an IR heat lamp. After the name plate coupons cooled, a second weighing was performed.
Eight 300 mL Pyrex beakers were filled with a Soy Gold and D-Greeze mixture. The beakers were heated to 130 F on a hot plate. Two coupons were cleaned in each solution mixture for 2 minutes using stir bar agitation. Coupons were rinsed under a hot water tap for 30 seconds and then air dried. Final weights were recorded and cleaning efficiencies were calculated.
The concentrations of the Soy Gold/D-Greeze solutions used were (%):
0.0, 2.5, 5.0, 7.5, 10.0, 20.0, 30.0, 50.0
SUBSTRATE MATERIAL: Aluminum Name Plate
CONTAMINANTS: Dirty cleaning solution, Solvent Kleen D-Greeze 500 w/ residual paint chips and pumice sludge
CONTAMINATING PROCESS USED: Added known volume to Cleaning Solution. Applied contaminant to using hand held swab.
All of the cleaning solutions were determined to be effective in removing all of the applied contaminant. Table 1 list the individual cleaning efficiencies for each soil loading mixture.
Table 1. Soil Loading Cleaning Efficiency
Success Rating:A cleanliness study, addressing only various analytical techniques.
The cleaning efficiencies were all 90% or better. The higher the soil loading, the more effective the cleaning became. This could be do to the make up of the contaminant and the diluted cleaning solution (both contain D-Greeze 500). The D-Greeze in the cleaning solution was helping in removing the D-Greeze from the coupons.