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Trial Number 1

Trial Purpose:

To evaluate supplied product for GS 37 bathroom cleaning.

Date Run:


Experiment Procedure:

The supplied cleaning product was used at the requested concentration and a second product, selected by the lab, was diluted with DI water to vendor recommended dilution for bathroom cleaning.

Preweighed chrome coupons were coated with SSL Soil 1 (Bathroom soap scum: All-in-one shampoo and conditioner 28.6%, Dry skin lotion 21.4%, Liquid hand soap 21.4%, Liquid body wash 14.3%, Deodorant bar soap 7.2% and water 7.1%.) using a handheld swab and allowed to dry for 24 hours at room temperature. The contaminated coupons were weighed again to determine the amount of soil added.

Three coupons were placed into a Gardner Straight Line Washability unit. A Kimberly Clark Reinforced paper towel was attached to the cleaning sled and soaked with 5-7 sprays of cleaning solutions. Each coupon was sprayed 7-10 times with the same cleaning solution. The solution was allowed to penetrate for 30 seconds followed by cleaning in the SLW unit for 20 cycles (~33 seconds). At the end of the cleaning, coupons were wiped once with a dry paper towel. Final weights were recorded. Efficiencies were calculated and recorded.

Trial Results:

The industry standard product was effective in removing the bathroom soil with a manual wiping action. The supplied product was effective on 2 of the three substrates. The table lists the amount of soil initially added and the amount remaining after cleaning and the product efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
H2O2-ceramic 0.2287 0.0590 74.20
  0.1961 0.0514 73.79
  0.2282 0.0425 81.38
H2O2-chrome 0.0950 0.0072 92.42
  0.2121 0.0331 84.39
  0.1404 0.0162 88.46
H2O2-fiberglass 0.0776 0.0068 91.24
  0.1270 0.0202 84.09
  0.2257 0.0444 80.33
Heavy Duty-ceramic 0.2088 0.0431 79.36
  0.1525 0.0402 73.64
  0.2057 0.0519 74.77
Heavy Duty-chrome 0.1548 0.0201 87.02
  0.1024 0.0152 85.16
  0.1142 0.0193 83.10
Heavy Duty-fiberglass 0.1695 0.0085 94.99
  0.1109 0.0064 94.23
  0.2153 0.0150 93.03

Success Rating:

A follow up test, usually based on company input.


The supplied product did not have an overall average efficiency greater than 85% and would not be considered effective based on the SSL testing methodology.

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