components are visibly damaged, or when the performance or cleanliness of the machine
is compromised.
Tip:
If the components are obviously contaminated, use 45:45:10 methanol/water/formic
acid.
3. Place the vessels in the ultrasonic bath for 30 minutes.
4. If you used formic acid in the cleaning solution, do as follows:
a. Rinse the components by immersing them in separate glass vessels containing
water, and then place the vessels in the ultrasonic bath for 20 minutes.
b. Remove any residual water from the components by immersing them in separate
glass vessels containing methanol, and then place the vessels in the ultrasonic bath
for 10 minutes.
Notice:
To avoid recontaminating the components, wear clean, chemical-
resistant, powder-free gloves.
5. Carefully remove the components from the vessels and blow dry them with inert, oil-free
gas.
6. Inspect each component for persisting contamination. If contamination is present, do as
follows:
a. Use the wash bottle containing 1:1 methanol/water to rinse the component over the
large beaker.
b. Blow dry the component with inert, oil-free gas.
7. Inspect each component for persisting contamination.
Requirement:
If contamination is present, clean the component again. If contamination
is still present, dispose of the component according to local environmental regulations, and
obtain a new one before reassembling the sampling cone assembly.
3.9.3 Refitting the source components
Required tools and materials
• Chemical-resistant, powder-free gloves
• 2.5-mm hex wrench
To refit the source components:
Requirement:
Wear clean, chemical-resistant, powder-free gloves when performing
this procedure.
Note:
This procedure presumes that the ion block, restrictor, and sample cone were cleaned.
1. Refit the O-rings onto the restrictor and the sample cone.
2. Insert the restrictor into the ion block.
August 20, 2021, 715005003 Ver. 04 (Previously released as Revision C)
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