ICP-MS 8900 cell reaction

We are about to add reaction gases to the Agilent 8900 ICP-MS reaction cell: NH3 and O2. Is the mechanical pump already sealed with Viton O-rings?

The equipment is for this application specifically, so I assume it does, but I would like to confirm this information to prevent damage to the pump.
I ask the same question regarding the pump filter (Oil Mist Filter, MS40+), is it the right one to prevent the release of NH3 to the outside?

Finally, the pump is currently running with Pfeiffer P3 oil (safety data sheet attached), is the oil suitable for pumping NH3 and O2? Does the pump require any type of conditioning to change the oil in case it is required?

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