AC’SCENT Flux Chamber is a surface emission isolation hood designed for solid or liquid surface sample collection. Our Flux Hood follows US-EPA recommended design parameters for isolated surface emission collection.
Set the AC’SCENT Flux Chamber directly on a solid surface or on a liquid surface with the included float. Use a clean odor-free sweep gas, either zero-air, high purity nitrogen or nitrogen with a helium tracer component. You follow your project protocol for sweep gas and sampling rates.
Overall Hood Diameter: 0.14 m (16″)
Surface Area under Hood: 0.13 m2
Four Ports: 1) sweep gas/air;
2) sample line;
3) excess gas/air vent; and
4) optional thermocouple probe.
Included Rope: 50′ – 3/8″ Nylon Braided Rope
Included Flotation: Standard 16″ Tube
Sweep gas supply and regulator NOT included.
Q: Does the AC’SCENT Flux Hood comply with EPA sampling methods?
Yes, see EPA document PB86-223161, “Measurement of Gaseous Emission Rates from Land Surfaces Using an Emission Isolation Flux Chamber.”
Q: When I use the Flux Hood what flux gas/air do I use?
The protocol for your project may dictate zero-air or high-purity nitrogen (HPN) with or without a helium (He) component.
Q: What is a typical sweep gas (air) rate?
25-liters per minute per square meter is a typical sweep gas rate, which is 3.5-LPM for the 0.13-m2 under the AC’SCENT Flux Hood.
Q: What is the typical sample collection rate?
The Sample collection rate depends on your project protocol; a typical sample collection rate is 1 to 2 LPM.