SNAP
®
Series Glass Columns
Description of Components
Carefully remove the SNAP
®
Column and/or adaptor from the packaging and check the contents against packing list sup-
plied. Inspect for any missing components or damage (particularly the glass body) that may have occurred during transporta-
tion. If any parts are missing or damaged, contact Essential Life Customer Service department immediately at 781-341-7240.
1.
GLASS BODY
a. Type 1, Class A Borosilicate, 3.3 Expansion Conforming to Federal Specification DD-G-5416 and
ASTM E-438, also meets the US Pharmacopoeia specifications for Type 1 borosilicate glass.
b. Graduations in mm are fused onto glass surface and will not come off from exposure to organic
solvents or autoclaving.
c. Glass is redrawn precision bore tubing.
2.
PISTONS
a. SNAP
®
Columns are configured with various piston combinations which include:
i. Fixed / Short, Fixed / Long, Short / Short, Short / Long, Long / Long
b. Piston material will vary according to order specifications and intended use.
c. Piston Connections are ¼-28 flat bottom HPLC, Adapters have been furnished with the column to
convert to M6 Standard flat bottom HPLC.
3.
O-RINGS
a. Each Piston will be provided with an elastomeric O-Ring.
b. O-Ring material will vary with order specifications.
c. O-Rings are ALWAYS shipped loose as they will become stuck to the glass wall over long term
storage. ELS recommends to install O-Rings just prior to use.
d. If O-Rings have been stored for long periods of time they should be inspected prior to use for
dryness and cracking.
4.
FRITS
a. Each Piston will be provided with a porous frit.
b. Material and frit porosity will vary with order specifications.
c. Frits can be removed for change out and cleaning. Please confirm that the appropriate frit has been
installed in the column for use with mobile and stationary phase. (see pg. 5)
5.
Clamp Assembly
a. Each column will be provided with two clamp assemblies produced from cast resin.
6.
Piston Adjustment Nut
a. Each column will be provided with two piston adjustment nuts produced from cast resin.
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