Browse Client Types

Browse past lab clients by general industry sectors

Trial Number 1

Trial Purpose:

To compare the effectiveness of the supplied cleaner, Sample 1 Condensate, to the comparative cleaner, Chemco Stainless Steel Cleaner/Polish, for cleaning Vegetable Oil/Carpet Soil from stainless steel substrates using the Manual SLW unit.

Date Run:


Experiment Procedure:

Three pre-weighed stainless-steel coupons per cleaner were coated with one half of a gram of Vegetable Oil/Carpet Soil at room temperature, using a handheld swab. The contaminated coupons were air dried for 24 hours at room temperature and weighed again to determine the amount of soil added the following day. 

Three coupons of each substrate were placed in the SLW unit and a KC Wypal reinforced paper towel was attached to the cleaning sled and treated with two sprays of cleaning solution.  Each coupon was sprayed twice with the same cleaning solution. The cleaning unit was run for 20 cycles (equivalent of 30 seconds of cleaning). Coupons were dried and final weights were recorded. Efficiencies were calculated and recorded.   

A Spectro Guide Gloss-Color meter from BYK Gardner was used to evaluate gloss. Baseline gloss readings of the surface were measured in five locations on the stainless-steel coupons before cleaning. After each coupon was cleaned and air dried, gloss readings were measured in the same five locations. The difference in gloss-color was then compared to determine effectiveness.

Trial Results:

The two cleaning products removed over 97% of Vegetable Oil/Carpet Soil on each substrate using the manual wipe unit.

Table 1: Gravimetric Analysis

Cleaner Initial wt of cont. Final wt of cont. %Cont Removed % Average
Sample 1 Condensate 0.5102 0.0115 97.75 97.79
0.5140 0.0103 98.00
0.5062 0.0120 97.63
Chemco Stainless Steel Cleaner/Polish 0.4239 0.0102 97.59 97.96
0.2368 0.0036 98.48
0.5082 0.0111 97.82

Table 2: Gloss-Color Analysis 

Cleaner Coupon Type Initial Gloss Reading Average Final Gloss Reading Average
Sample 1 Condensate Stainless Steel 34.7 35.27 65.6 59.47
29.0 53.7
42.1 59.1
Chemco Stainless Steel Cleaner/Polish Stainless Steel 60.0 48.6 53.6 51.77
54.5 54.5
31.3 47.2

Success Rating:

A cleanliness study, addressing only various analytical techniques.


Sample 1 Condensate and Chemco Stainless Steel Cleaner/Polish efficiently removed Vegetable Oil/Carpet Soil on stainless steel substrates using the Manual SLW Unit. Sample 1 Condensate was as effective as the comparative cleaner, Chemco Stainless Steel Cleaner/Polish, with respective removal rates of 97.79% and 97.96%. According to the gloss-color analysis table, Sample 1 Condensate cleaner demonstrated an increase in gloss-color after cleaning, which is considered to be effective.

Save Report as a PDF