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Appendix D
Shipping and long-term storage
recommendations
The following recommendations should be followed:
• For shipping purposes the gas chromatograph should be secured to a wooden
pallet, maintained in a vertical position and enclosed in a wood framework with a
cardboard skin.
• Auxiliary equipment such as sample probes may be stored in the packaging in which
it was shipped. If this packaging material is no longer available, secure the
equipment to prevent excessive shaking and protect the accessories in a water proof
enclosure.
• The gas chromatograph should be stored in a sheltered environment that is
temperature controlled between -30 °C (-22° F) and 70° C (158° F) to keep the gas
chromatograph’s protective coatings from deteriorating from exposure to rain or
caustic or corrosive environments. Humidity in the sheltered environment should be
non-condensing.
• The program stored in the remote or integral controller memory may be retained
through battery back-up for at least two years. If lost for some reason, a custom
program for downloading the appropriate GC application is included on the CD
shipped with the system documentation.
• If the gas chromatograph has been in operation, the system should be purged with
carrier gas before powering the gas chromatograph down. Allowing the gas
chromatograph to perform a couple of analysis cycles without sample gas is an
acceptable method of purging the system. Monitor the results and remove power
after component values fall to “0” or after peaks are significantly reduced in size.
• After removing power from the GC, remove the purge gas and immediately cap all
inlets and vents, including the carrier drier. These vents and inlets should be capped
with the fittings that were in place when the GC shipped from the factory or with
Swagelok caps (not provided). This will protect the columns and filters and should
result in a trouble-free start up when the unit is returned to service.
• The sample conditioning system vents and inlets should also be capped with the
fittings that were in place when the system shipped from the factory. Additionally,
all vents should be closed.
• Any remaining openings—such as conduit entries—should also have appropriate
plugs installed to prevent foreign material such as dust or water from entering the
system.
Shipping and long-term storage recommendations
D
Shipping and long-term storage recommendations
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