Bottle-Vac 取样器 | 29-BV040A

Bottle-Vac Samplers

Bottle-Vac samplers are the most economical gas-phase sample collection containers available. They use Micro-QT Valves which are small and non-contaminating by design. Our Bottle-Vac samplers are as gas-tight as stainless-steel canisters, making them a low-cost alternative for whole air sampling. A sample is only exposed to treated glass, 316 stainless or Silonite coated stainless-steel, and a small O-ring which forms the seal at the cap. All of these materials are inert, allowing for a wide range of analytes to be recovered. Time-weighted sampling techniques are possible using MiniCan sampling inlets, or by using Helium Diffusion Sampling.

Bottle-Vac Sample Analysis

In the laboratory, analysis by loop injection requires either pressurizing to 3–7psig, or heating to 60–70?C to increase the pressure to purge a loop. Bottle-Vac samplers can also be analyzed using a 7200 or 7100A Preconcentrator to withdraw a larger volume for low PPB analysis. Automated analysis can be performed using the 7650, 7410D, or 7032A Autosamplers.

Bottle-Vac Cleaning

Bottle-Vac samplers are reusable, making them less expensive per sampling event than other sampling devices, even Tedlar bags. For PPB sampling, the bottles should be flushed with nitrogen or zero air in an oven after the fittings have been removed, then evacuated after the fittings are reattached. Fittings can be heated, flushed and stored under nitrogen in a separate container. For PPM sampling, the valves and bottles can simply be heated in an oven overnight with the fittings removed, then reassembled for immediate evacuation and delivery to the field. Bottle-Vacs can also be easily cleaned on Entech’s canister cleaning systems.

应用程序 – (All Tedlar Bag uses, plus:)

? Indoor Air Quality

? Ceiling / STEL / TWA Monitoring

? Fugitive Emissions

? Landfill Gas / Soil Gas

? Fenceline Monitoring

? Breath Analysis

? Mold Detection (MVOCs)

? Impurities in Gases

? Stack Gas

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