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Trial Report
Trial Number 1(Client Number 37, Project Number 1) |
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Trial Purpose: Determine compatibility with aluminum Date Run: 05/20/98 Experiment Procedure: This experiment was performed to determine if the substitute propriety chemical was compatible with aluminum. Three precleaned coupons were weighed to obtain baseline weights. The coupons were placed into a bath of the chemistry. Coupons were separated from each other using wire hooks. Two hooks on the bottom of the container supported the first coupon. Two more hooks were placed on top of this coupon. This was continued for the remaining two coupons. The container was then covered and allowed to sit for 24 hours. Coupons were removed from the chemistry and rinsed with DI water at room temperature for 10 seconds. Parts were dried at room temperature. Final weights were recorded. Trial Results RESULTS: Table 1 lists the before and after weights of the aluminum coupons.
Coupon # Initial Weight (g) Final Weight (g)
2 21.1203 21.1208
3 21.0250 21.0258
8 21.1521 21.1535
From visual inspection and through gravimetric analysis, no signs of etching or weight loss were recorded.Success Rating Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined. Conclusion The chemistry appears to be compatible with aluminum. |