Hexavalent Chromium (Cr6) Filter Samplers
ATEC has recently introduced a multi-port embedded computer controlled hexavalent chromium (Cr6) filter sampler. This sampler is ideally suited for use in the US EPA National Air Toxic Trends Stations (NATTS) program.
ATEC 3400 Toxic Air Sampler
The Model 3400 Toxic Air Sampler is designed to sample both toxic gases and particulates using one easy to use instrument. The Model 3400 can be ordered with up to 4 sample channels. The sample is ideally suited for use in the NATTS program, since it can simultaneously sample one canister, one carbonyl DNPH cartridge, and two hexavalent chromium (Cr6) filter samples. The sampling methods employed in the Model 3400 follow the guidelines outlined in EPA Methods TO-11A, TO-14, TO-15, and the improved CARB method for Cr6 recently developed by EPA and ERG.

The flow rate through each channel is regulated with reliable mass flow controllers. A single board internal computer with a color touch screen display provides flexible scheduling, error checking, and data logging capabilities. The sampler is available in either an indoor or outdoor version.
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