The 549 sampler is the same sampler as the 566, except the sampler face has fewer holes to reduce the amount of reverse diffusion from the very volatile HCFC chemicals.  Therefore, the sampling rate is much slower and the reporting limits higher.  The collection media is the same flexible, inert charcoal wafer that is inside the 566 and 546.

Tech Doc


Before sampling, ship and store at room temperature.

After sampling, store and ship at room temperature.  Ship to arrive at the laboratory within 14 days of sampling.

Use For

8 hour/TWA sampling

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