The seventh cleaner selected based on vendor information and the lab’s Effective Test Conditions Database was tested. The cleaning solution was made into 2% solutions using DI water in 600 mL beakers. Three coupons were weighed prior to cleaning. These coupons were cleaned in the solution for five minutes using stir-bar agitation. Parts were rinsed for two minutes in DI water at room temperature. The parts were dried in a convection oven at 212 F for 15 minutes. After allowing parts to cool to room temperature, final weights were recorded. If weights did not change, the cleaner would be retested at a 5% solution with new coupons. If weights went down, the cleaner would be used in the next phase of testing.
SUBSTRATE MATERIAL: Ceramic-Alumina parts
CONTAMINANTS: DuPont Evanol (Vinyl Alcohol Polymers & Copolymers CAS#s: 9002-89-5, 25213-24-5, 54626-91-4; Methanol Bulk/Packaged CAS #: 67-56-1; Sodium Acetate CAS#: 127-09-3)