Method 3 - Oxygen Analysis of Silver

Preparation

Rate of temperature increase = 10 °C per minute
Vacuum set point = 10 µmHg
Task No. Action Temperature
(°C)
Time *
(Minutes)
1 Evacuate 100 30
2 Flow oxygen 100 10
3 Ramp temperature while flowing oxygen
170 10 °C / min
4 Hold temperature while flowing oxygen 170 60
5 Evacuate 170 30
6 Flow hydrogen 170 60
7 Evacuate temperature < 10 mmHg 170 30
8 Analysis 170  
*Time for evacuation is the number of minutes below set point at the specified temperature. Time for gas flow is the number of minutes at the specified temperature.

Analysis

Gas: Oxygen
Temperature: 170 °C
Line fit: Enabled for all pressure points
Repeat analysis: No
Pressure table (mmHg): 40, 67, 93, and 120
 
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