Micromeritics ASAP 2460, Operator'S Manual

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Preparing for Analysis ASAP 2460 Operator’s Manual
2-30 246-42800-01 - Aug 2013
9. Remove the sample tubes and filler rods from the oven and allow to cool.
10. Blow out the sample tubes with oil-free compressed air.
11. Label the sample tube and stopper for identification.
Determining the Sample Mass
Analysis results are expressed in units of surface area per gram of sample; therefore, it is important the
true sample mass be known. The true mass is best calculated as:
• weigh the empty Sample Tube Set (sample tube and stopper, check seal or TranSeal) before degas
• weigh the Sample Tube Set with sample before degas and subtract from the weight of the empty
Sample Tube Set
• weigh the Sample Tube Set with sample after degas and subtract from the weight of the empty
Sample Tube Set
• weigh the Sample Tube Set with sample after analysis and subtract from the weight of the empty
Sample Tube Set
A
Sample Data Worksheet
for recording the weights and calculating the mass is included in Appen-
dix A. Make copies as needed.
Use a copy of the Sample Data Worksheet to record the following:
1. Record the Sample Tube Identification .
2. Place the sample weighing support on the balance. Tare the balance and allow it to stabilize at
zero.
3. Place the sample tube set on the balance.