Storage – SKC 590-300 Nitrous Oxide Passive Sampler User Manual
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Aft er desired sampling period, unclip sampler
from worker's clothing. Immediately remove
green secondary diff usion barrier and dispose
following appropriate procedures.
Seal sampler with cover immediately.
It is important that samplers are sealed tightly
with cover. The samplers could potentially
pick up moisture over time which will affect the
recovery of N
2
O.
Write stop time on label on the pouch.
In a clean, organic solvent-free environment,
carefully remove plug from vial adapter on back
of sampler housing. Immediately screw open
end of sorbent vial into adapter (see inset 10A).
Rotate assembly until sorbent is draining from
sampler to vial. Tap sampler lightly. Ensure
all sorbent is recovered in the vial. Remove
sampler housing from vial and immediately
screw cap onto vial.
Avoid exposing sorbent to air.
Mark sample vial(s) as appropriate and seal in
aluminized pouch. Package sample(s) and one
blank sorbent vial in a padded envelope. Send
to a laboratory for analysis.
Storage
Before Sampling: Up to 6 months at < 39.2 F (4 C) in a clean environment
Aft er Sampling: 3 weeks at < 39.2 F (4 C) or 1 week at ambient temperature
in a clean environment
Sorbent vials should be capped tightly and kept in foil pouches before
and aft er use.
11
11
Vial Adapter
Sorbent
10
10
Sorbent Vial
10A
10
10
11
11
9:30
5:30