Heated alkali bath setup

Published May 16, 2018, 5:09 p.m.

This has a temperature controlled rheostat controlling the hot plate with the temperature sensor dipped into the alkali bath. The temperature of the bath in the photo is 61.4°C.

Heated alkali bath setup

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Finished set of steel test rectangles Making elliptical enamel plaques Checking the pH of the alkali bath