User`s guide

Routine Maintenance
286
When tubes are packed with more than one adsorbent in series, the
different beds of packing are usually separated with glass wool.
Non-silanized glass wool is preferred.
Gauze-Loading Accessory
The gauze-loading accessory (P/N L407-0023) is a tool for inserting
the retaining gauze disks into stainless steel sample tubes.
Figure 83 shows a tube being positioned with downward pressure
applied to the tube to depress the spring-loaded ball in the base.
When the tube is pushed into the upright position, it is held between
this ball and a slight recess in the upper part of the tool.
Figure 83 The Gauze-Loading Rig
The exposed plunger shaft has an adjustable stop on it. This stop
should be set so that the underside of the plunger knob is 3 inches
above the barrel of the tool when the stop is in contact with the
barrel. When the knob is subsequently pressed down, the second
gauze disk will be pushed far enough into the filled tube to enable
the retaining spring to be completely inserted.
To insert a gauze disk:
3 inches
(76 mm)
Lower Sprung Ball
Grooved End
of Sample Tube
Tube being sprung
into position
Tapered Hole
for Gauze insertion
Adjustable
Stop
Plunger Knob
Tool Barrel