CEM iPrep 12, Руководство пользователя, Страница: 22 / 30

18 Vessel Cleaning and Inspection
Procedure:
1.
Place the plugs and liners on their side in an air oven at room temperature.
CAUTION
Only the plugs and liners should be placed in the air oven at 210 ºC. Sleeves can be placed in an air oven
no greater than 105 °C. See "Sleeves" section for more detail.
2. Set the oven temperature to 210 °C and let the liners warm slowly. Do not exceed an oven temperature of 215
°C.
3. Leave the liners in the oven for a minimum of 6 hours. Leaving them in overnight is acceptable.
4. After the heating time is complete, turn the oven off and let the liners cool slowly back to room temperature
inside the oven. It is important to let the liners cool slowly back to room temperature following the bake out
procedure.
5. Remove the liners from the oven. The liners should be white in color, comparable to new liners with no acid
history.
Turntable, Frame, Load Disc, Screw & Racks
1.
Wash in hot, soapy water as needed and allow to dry completely before use.
2.
Inspect the turntable, frames, load discs, and screw for acid marks, cracks or discoloration.
Sleeves
1. If water or acid gets on a sleeve, wipe it off with a damp paper towel and allow to dry. Never soak sleeves.
2. Inspect the sleeves. Sleeves should be smooth and golden brown.
• Sleeves that are distorted or flared must be discarded. See "Vessel Assembly"for preventative measures.
• Sleeves that have turned white should be discarded. This is a result of temperatures greater than 250 ºC
for long periods of time.
• Sleeves can be dried in 105 °C oven for 8 - 12 hours.
• If a sleeve becomes wet (submerged in liquid) discontinue use.
CAUTION
Never soak sleeves in water or detergent.
Remove composite sleeves before adding acid to vessel liners or before pouring digested solutions out to
prevent liquid from wicking into the composite material.