5 Operational Verification
9. Replace the rubber stopper, Check Seal, or TranSeal.
10. Weigh the sample tube set containing the sample and record the value on the Sample Data
Worksheet as [B] Sample tube set plus sample mass (Before Degas).
11. Subtract the [A] Mass for empty sample tube set from the [B] Mass of sample tube set plus
sample and record this value as the [C] Sample mass (Before Degas).
DEGAS SAMPLES
After the sample has been weighed, use a degassing unit to remove any contaminants which may
have adsorbed to the surface or pores of your sample. Appropriate degassing units are available
from Micromeritics. Log in to your customer portal to access parts and accessories.
If using the SmartPrep degasser, use the Degas Conditions tab in the application to set degas
parameters. Refer to the Smart Prep Operator Manual for operating instructions.
After degassing is complete, perform the following steps:
1. Weigh the sample tube set containing the sample; record the weight on the Sample Data
Worksheet as Sample tube set plus sample mass (After Degas).
2. Subtract the Mass for empty sample tube set (Before Degas) from the Sample tube set plus
sample mass (After Degas) to obtain the sample’s mass; record this value as Sample mass
(After Degas).
5 - 10
TriStar II 3020 Confirm Installation Instructions and Checklist
302-42870-04 (Rev A) — Sep 2017
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