The TRI Air Testing method for conducting moisture testing in compressed air is an on-site method that directly measures the moisture content of the compressed air stream using a color indicator tube.
We choose to use this onsite method because moisture content measured from a low-pressure sample container can be wrong due to the loss or gain of moisture through interaction with the interior surfaces of the sample container including the polymeric and elastomeric seal.
Also, differences between the sampling temperature and the temperature when the moisture analysis is conducted remotely can introduce error into moisture results. TRI’s methodology represents an accurate picture of the moisture content of the compressed air at the time of sampling.
- TRI Moisture Sampling and Analysis
- Compressed Air Testing – Moisture/Dewpoint
- Too Much Moisture in the Compressed Air System Used to Fill SCBA Tanks
- Moisture Analysis. Why we use Draeger Tubes
- High Moisture Results in Compressed Air
– When collecting samples for moisture, NIST explains why using low
pressure samples and containers with polymeric or elastomeric materials
is NOT a valid method for sampling moisture
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