Protective shelter
|
The diffusive TD Tube for Benzene is deployed for 14-day fenceline monitoring at multiple points around petroleum refinery sites.
- Meets specification of U.S. EPA 325A and UK HSE MDHS 104
- Used to determine average benzene concentration in the range 0.5 to 500 ug/m3 over a two week period
- Reusable
The tubes are standard-sized SilcoNert 2000 deactivated Stainless Steel TD tubes with Swagelock fittings; when they are deployed a diffusion cap is connected to one end. The diffusion cap works the same way as a front plate on a passive badge, and has a small screen inside which also keeps out particulates/insects. Tubes are deployed inside a custom-made shelter for outdoor use, which can hold up to 4 tubes at a time, and keeps them pointing diffusion-cap downwards.
The tubes are identified with a unique identification number and bar code, and the airflow cap placement arrows are also printed on the tube.
Specifications
|
| Sorbent: |
Carbopack X |
| Tube Material: |
Stainless Steel coated with SilcoNert 2000, sealed with brass Swagelok screw caps fitted with PTFE ferrules |
| Uptake Rate: |
Benzene: 0.67 ml/min |
| Dimensions: |
3.5 x 0.25 inch OD |
| Analysis: |
GC-FID or GC-MS (EPA 325B) |
Note: All tubes are conditioned and quality control tested to assure low background
| Description |
Pack Size |
Part Number |
| SKC Diffusive TD Tubes for Benzene*
Supplied with diffusion caps and brass Swagelok screw caps with PTFE ferrules
|
10 |
526-100 |
| Diffusion Caps |
10 |
526-100 |
| Shelter |
Each |
526-100 |
* Tubes must be used within 30 days of conditioning
