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To evaluate products on fourth supplied contaminant
Seven products were selected based on success in previous two trials as well as three new products. The seven products were used at full strength in a 250 ml beaker and heated to 96 F on a hot plate. The new products were used at room temperature due to lower flash points. Thirty preweighed silver plated copper coupons were coated with the Houghton International Cindol 3401 oil (64742-46-7) using a hand held swab. Coupons were weighed a second time to determine the amount of soil added to each coupon. Three coupons were cleaned in each solution for 5 minutes using stir-bar agitation. After cleaning parts were weighed a final time and efficiencies were calculated.
All ten products remove over 93% of the oil within five minutes of cleaning. Seven removed over 98% and four removed over 99%. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
|Cleaner||Initial wt||Final wt||% Removed|
Success Rating:Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
A follow up trial will be conducted on the first contaminant to evaluate five products.