Applied Markets
Installed Gases
Project Details
Tamtec CNS visited a Yongsan-area library that wanted hands-on trials of multi-gas instruments to chase an odor complaint.
The odor source was unknown, so we needed a detector that could screen several gases at once. GasTiger 2000 can show up to five common safety channels simultaneously—ideal when you must discover which species actually appears.
The meeting took place inside the library, covering stacks, an attached daycare, and restrooms.
We brought two configurations—one emphasizing CH4, VOC, methyl mercaptan, and flammable indicators, and another adding NH3 alongside O2, CO2, CO, and H2S—because the librarian suspected methane but was not certain.
We started with the library floor area using the multi-gas unit.
Methane did not trend, but we picked up a small ammonia (NH3) signature near a floor drain under shelving—repeat passes showed ammonia as the dominant contributor in that zone.
We then sampled restrooms on another level where odors had also been reported.
Despite noticeable smells, ammonia did not reproduce the first-floor pattern; repeated checks suggested restrooms were not the primary driver compared with the ground-level drain.
Ammonia still pointed to localized sewer pathways, yet similar complaints came from distant rooms—so a single ppm trace in open air was not enough to triangulate every source without more grid sampling. We explained those limits and closed the consultation.
