6 Perform an Analysis
Follow the instructions on the Sample Data Worksheet and complete all fields to find the true
sample mass.
1. Record the sample tube identification on the Sample Data Worksheet.
2. Place the sample weighing support on the balance. Tare the balance and allow it to stabilize
at zero (0).
3. Place the empty sample tube set (empty sample tube and stopper) on the sample weighing
support and place it on the balance.
4. Record the stabilized mass on the Sample Data Worksheet. Remove the sample tube set
from the balance.
Do not touch the sample with bare hands while performing the following steps. Doing
so could affect the accuracy of results.
5. Place a sample container on the balance. Tare the balance and allow it to stabilize to zero.
6. Slowly pour the specified amount of sample into the sample container.
7. Remove the rubber stopper, Seal Frit, Check Seal, or TranSeal from the sample tube.
8. Use the sample tube funnel (provided in the accessories kit) and pour the sample from the
weighing container into the sample tube.
9. Replace either the rubber stopper, Seal Frit, Check Seal, or TranSeal.
10. On the Sample Data Worksheet, record the following:
n
Mass of the sample tube set with the sample.
n
Subtract the Mass of empty sample tube set from the Mass of sample tube set plus
sample.
6 - 6
TriStar II Plus Operator Manual
303-42800-01 (Rev M ) — Sep 2023
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