Preparing Samples; Choosing Sample Tubes - Micromeritics ASAP 2020 Confirm Operator's Manual

ASAP 2020 Confirm

Preparing Samples

Care should be taken in choosing, conditioning, and filling sample tubes. The following
guidelines help ensure accurate, reproducible results.

Choosing Sample Tubes

A sample tube set consists of the following parts:
• Sample tube
• Stopper or seal frit
• Filler rod
Standard sample tubes for the ASAP 2020 degas and analysis stations have a 1.27-cm (1/2-
in.) outside diameter (OD). Two other sizes are available: 0.64-cm and 0.95-cm (1/4-in. and
3/8-in.) OD. Stepped ferrules, smaller O-rings, isothermal jackets, and filler rods are available
for adapting the smaller stems to the degas or analysis ports (refer to
INFORMATION
precision requirements, as well as personal preference and convenience in loading the sample.
A rubber stopper may be used with all size sample tubes; however, seal frits are
recommended for 1.27-cm (1/2-in.) OD sample tubes (refer to
INFORMATION
3-14
Sample Tube
9-1). The stem diameter selected for use is a matter of accuracy and
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9-1).
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Filler Rod
Seal Frit
(optional)
Stopper
ORDERING
ORDERING
202-42811-01 - Mar 2011
Preparing Samples