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Trial Number 0

Trial Purpose:

To evaluate supplied products for GS 37 bathroom cleaner performance.

Date Run:

01/14/2010

Experiment Procedure:

The supplied cleaning products were used at the requested concentration and a third product (conventional) was used at full strength as recommended by the vendor for bathroom cleaning.

Preweighed ceramic, chrome and fiberglass 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 hand held 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 two supplied products removed over 85% of the bathroom soap scum soil from all surfaces except one (One of the two products removed 80% from the chrome surface). The supplied conventional product removed less than 50% of the soil from the surfaces. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
DFC Restroom Ceramic      
  0.2518 0.0254 89.91
  0.2647 0.0105 96.03
  0.2939 0.0224 92.38
DFC Restroom Chrome      
  0.2400 0.0545 77.29
  0.2567 0.0325 87.34
  0.2143 0.0465 78.30
DFC Restroom Fiberglass      
  0.1850 0.0202 89.08
  0.2799 0.0138 95.07
  0.1992 0.0162 91.87
DFC Clacium Lime Rust Ceramic      
  0.3295 0.0071 97.85
  0.3184 0.0163 94.88
  0.3656 0.0223 93.90
DFC Calcium Lime Rust Chrome      
  0.1534 0.0056 96.35
  0.1394 0.0027 98.06
  0.1067 0.0060 94.38
DFC Calcium Lime Rust Fiberglass      
  0.1857 0.0091 95.10
  0.2639 0.0121 95.41
  0.2325 0.0036 98.45
Soft Scrub Ceramic      
  0.1819 0.0558 69.32
  0.0961 0.0886 7.80
  0.3835 0.1673 56.38
Soft Scrub Chrome      
  0.0523 0.0233 55.45
  0.1020 0.0878 13.92
  0.1225 0.0761 37.88
Soft Scrub Fiberglass      
  0.1468 0.0798 45.64
  0.3632 0.1078 70.32
  0.1415 0.0261 81.55

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The DFC Restroom and Calcium, Lime & Rust cleaners removed over 85% of the SSL Bathroom soap scum using manual cleaning. Both out performed the supplied conventional product on the same soil.

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