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Toxics Use Reduction Institute · Surface Solutions Laboratory
 
Toxics Use Reduction Institute




Surface Solutions Laboratory

Trial Report



Trial Number 3

(Client Number 275, Project Number 1)

Trial Purpose: To evaluate supplied products for all purpose janitorial cleaning

Date Run: 01/31/07

Experiment Procedure:
The supplied cleaning products were used at the recommended concentration (2%, 2% and 1.5%). Nine preweighed ceramic, six plastic and six steel coupons were coated with Hucker's Soil Formulation (Jif Creamy Peanut Butter 9.2%, Salted Butter 9.2%, Arrowhead Mills stone ground wheat flour 9.2%, Egg Yolk 9.2%, Evaporated milk 13.8%, Distilled water 45.8%, Printer's ink with boiled linseed oil 0.9%, Shaws saline solution 2.7%) 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. AA Wypall X60 reinforced wipe 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 and efficiencies were calculated and recorded.

Trial Results
All three products were effective in removing the soil with a manual wiping action.  Two of the products had lower efficiencies for removing the
Hucker's soil from the plastic coupons. The third product, Blue Jay, had lower efficiency on the steel coupons. The table lists the amount of soil
added and the amount remaining after cleaning and the product efficiency for each coupon cleaned.

#120 Peroxide Multi-surface
Substrate      Initial wt Final wt   % Removed
Steel          0.2168      0.0093      95.71
               0.2219      0.0057      97.43
               0.1506      0.0139      90.77
Plastic        0.1479      0.0028      98.11
               0.1224      0.0084      93.14
               0.1438      0.0053      96.31
Ceramic        0.1955      0.0350      82.10
               0.1205      0.0394      67.30
               0.3635      0.1192      67.21
#108 Spray & Wipe
Steel          0.1202      0.0063      94.76
               0.1254      0.0086      93.14
               0.1980      0.0141      92.88
Plastic        0.0876      0.0089      89.84
               0.1428      0.0156      89.08
               0.1461      0.0102      93.02
Ceramic        0.3501      0.0390      88.86
               0.2510      0.0296      88.21
               0.1399      0.0228      83.70

Blue Jay
Steel          0.6655      0.1082      83.74
               0.7624      0.1039      86.37
               0.8457      0.2769      67.26
Plastic        0.9588      0.0272      97.16
               0.6103      0.0211      96.54
               0.9727      0.0170      98.25
Ceramic        0.6652      0.0791      88.11
               0.9397      0.1544      83.57
               0.8453      0.1714      79.72


Success Rating
A follow up test, usually based on company input.

Conclusion
The three products had an overall average efficiency over 85% and would be considered effective according to the Mass EPP protocol for an all purpose cleaner.