Note:
Do not clean the consumable components of the aperture assembly, such as the
entrance-aperture seal and entrance-aperture disc. Instead, replace these consumables
when performing general maintenance, the components are visibly damaged, or 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 placing 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 placing 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.
3.8.5 Refitting the source components
Required 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.
June 15, 2017, 715003956 Rev. F
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