Description
At the lab, the samples are desorbed by transferring the sieves into a vial, adding water, and capping the vial. The water will displace the nitrous oxide, which gathers in the headspace of the vial. Finally, the headspace is analyzed by GC/ECD for the nitrous oxide.
- PLEASE NOTE: Starting with lot 3C20, the black return container is no longer necessary. (Lot “3C20” means the lot was made March 2020.)
- With this lot, the holding time changed from 7 to 14 days.
Special Notes
Important Handling Instructions:
- Remove the badges from pouches immediately before sampling. Even though the badge is shut, it could still be collecting nitrous oxide.
- Before and after use, store the badges in a room that has no nitrous oxide.
- After sampling, place each badge into a return envelope provided. Do not put more than one badge into each envelope.
- PLEASE NOTE: Starting with lot 3C20, the black return container is no longer necessary. (Lot “3C20” means the lot was made March 2020.)