1. Dip screens in nitric acid to remove organic impurities.
2. After cleaning screens, handle only with clean
gloves or tongs.
3. Rinse thoroughly is distilled water.
4. Heat screens to 850-900 degrees in oven.
5. Immerse screens in samarium nitrate solution while
still hot.
6. Return in oven, heat for 30 minutes after oven
reaches 850-900 degrees.
7. Repeat steps 5 and 6 and minimum of 4 times.
8. A dull straw color indicates coating is applied
properly and should be uniform over the screens.
C. Keep the screens stored in a
clean container until ready to install in the motor
or gas generator. Handle with gloves, do not allow
foreign matter to drop into the pack during assembly.
Take care so that pipe sealant, Teflon tape, lubricants,
etc., do not pass downstream into the catalyst pack.