For measuring the air concentration of chemicals including mercury vapor.
Description
These tubes are used to measure the average concentration of potentially harmful vapors in the air over a defined sample period. To use, the tube is connected to a small vacuum pump that draws air through the tube at a precise flow rate over a period of time. After the sample is taken, the tube is transported to a laboratory where they can remove the adsorbent material and perform analysis by solvent extraction and gas chromatography (GC) to determine the quantity of chemical collected, from which a time-weighted average (TWA) concentration can be calculated.
Specifications
| Sorbent Material |
Microlite (equivalent to Hopcalite, Hydrar® and Carulite®) |
| Flow Resistance |
≤ 10 kPa at flows up to 500cc/min |
| Operating Temperature Range |
10 to 40o C between 20-80% RH |
| Blank Tube Background |
≤ NIOSH LOD for the target vapor |
| Standards Compliance |
ISO 22065 |
| Product # |
Tube OD |
Tube Length |
Primary Sorbent Weight |
Backup Sorbent Weight |
| ZST-040 |
6mm |
70mm |
200mg |
None |
| ZST-041 |
8mm |
110mm |
500mg |
None |
Additional Information Available
Zefon Microlite Sorbent Tube Operating Instructions
