SNAP
®
SeriesGlass 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 anymissing components or damage (particularly theglass body) thatmay haveoccurredduring transporta-
tion. If anyparts aremissingor damaged, contact Essential LifeCustomer Servicedepartment immediatelyat 781-341-7240.
1.
GLASS BODY
a. Type 1, Class A Borosilicate, 3.3 ExpansionConforming to Federal SpecificationDD-G-5416 and
ASTM E-438, alsomeets theUS Pharmacopoeia specifications for Type 1 borosilicate glass.
b. Graduations inmm are fused onto glass surface andwill not come off from exposure to organic
solvents or autoclaving.
c. Glass is redrawn precision bore tubing.
2.
PISTONS
a. SNAP
®
Columns are configuredwith various piston combinations which include:
i. Fixed / Short, Fixed / Long, Short / Short, Short / Long, Long / Long
b. Pistonmaterial will vary according to order specifications and intended use.
c. PistonConnections are¼-28 flat bottomHPLC, Adapters have been furnishedwith the column to
convert toM6 Standard flat bottomHPLC.
3.
O-RINGS
a. Each Pistonwill be providedwith an elastomericO-Ring.
b. O-Ringmaterial 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 Pistonwill be providedwith 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 usewithmobile and stationary phase. (see pg. 5)
5.
ClampAssembly
a. Each columnwill be providedwith two clamp assemblies produced from cast resin.
6.
PistonAdjustment Nut
a. Each columnwill be providedwith two piston adjustment nuts produced from cast resin.
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