Method 1 - Carbon Monoxide Analysis of Platinum

Preparation

Rate of temperature increase = 10 °C per minute
Vacuum set point = 10 µmHg
Task No. Action Ramp Rate
(°C / min)
Temperature
(°C)
Time
(Minutes)
1 Evacuate, helium backfill 10 110 30
2 Flow hydrogen   100 10
3 Flow hydrogen 10 400 30
4 Evacuate, no backfill   400 30
5 Evacuate, no backfill 10 35 60
6 Leak test, outgas rate
limit = 10 µmHg/min
  35
7 Evacuate, no backfill 10 35 20

Analysis

Requires repeat analysis.

Gas: Carbon monoxide
Temperature: 35 °C
Heat rate: N/A
   
Equilibration interval: 10 sec
Relative target tolerance: 5.0%
Absolute target tolerance: 5.0 mmHg
   
Repeat analysis: Yes
Fast evacuation: No
Unrestricted evac pressure: 30 mmHg
Evacuation time: 30 min
   
Free space: Measure
Incremental dosing: No
Line fit: Enabled for all pressure points
Pressure table (mmHg): 200, 250, 300, 350, and 400
 
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