Inlets and valves
6850
6850
Released: April 2004 6850 Series Gas Chromatograph Service Procedures 107
1. Place the appropriate Graphpack ferrule onto
the column inlet end and pull it at least
30 mm from the end.
2. With a glass knife or other fused silica
cutter, remove approximately 10 mm from
the column end to eliminate graphite contam-
ination.
3. Position the ferrule so that it is 17 mm from
the column end. Place a small mark (type-
writer correction fluid is useful) at the back
of the ferrule and, making sure that the
column is correctly positioned, insert the
column end into the adapter.
Figure 1-38. Column installation
2
0
22
Mark column here
17 mm
2
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