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Fitting and Tube Connection Guidelines
Installing Capillary Tube Fittings
Thermo Scientific
Table 1. ASTM filtered, Type I deionized water specifications for ion chromatography
Contaminant
Colloids–Silica
Bacteria
* Iron/transition metal content not specified for ASTM Type I water
Follow these guidelines when connecting tube fittings in the Dionex ICS-4000:
• Use high-pressure 10-32 fitting bolts (P/N 074449) and high-pressure 10-32
double-cone ferrules (P/N 074373) for all connections. Fitting bolts and ferrules are
included in the Dionex ICS-4000 Ship Kit (P/N 075161).
• Do not shorten or lengthen the 0.062 mm (0.0025 in) ID blue PEEK tubing (capillary
tubing) used for Dionex IC Cube connections, and do not substitute different tubing.
This tubing is precision cut at the factory using a specialized cutter. Precision-cut tubing
is included in the Dionex IC Cube Tubing Kit (P/N 072186).
To install capillary tube fittings
1. Install the fitting bolt and ferrule onto the tubing. Position the ferrule at least 2 mm
(0.08 in) from the end of the tubing (see
Figure 1.
Ferrule and fitting bolt placement for capillary tubing connections
2-mm
Correct placement of ferrule and fitting
on capillary tubing
2. Insert the tubing into the port until it stops.
Figure 2.
Fitting installation example
Specification
<10 ppb
<1 (cfu/mL)
Figure
1).
Incorrect placement of ferrule and
fitting on capillary tubing
Dionex ICS-4000 Installation Instructions
Preface
Fitting and Tube Connection Guidelines
xiii
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