Stainless steel canisters offer a tremendous advantage over other air sampling media, namely Tedlar bags and adsorbent traps. Since their introduction in the late ‘70s, canisters have continued to grow in popularity due to their ease of sampling, long storage times, low blank levels, and the ability to perform multiple analyses in the laboratory. Like Tedlar bags, the concentration of the sample is not altered in the field. The sample is simply placed in a container that preserves the concentration until the analysis is performed from days to weeks later in a laboratory. Whether the concentration is PPM level or Sub-PPB, the sampling is performed the same way, eliminating much of the responsibility on the part of the individual performing the sampling.
|Create Date||July 12, 2017|
|Last Updated||July 13, 2017|