Item No.: ZST-051 - SORBENT TUBE, SILICA GEL, 6X70, 100/50, 50/BX
Zefon Item Number: ZST-051
Description: Silica Gel Sorbent Tube, 6 x 70mm, 100/50mg, 50/bx
For measuring the air concentration of chemicals including methanol.
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 | Silica Gel |
| Flow Resistance | <= 10 kPa at flows up to 500cc/min |
| Operating Temperature Range | 10 to 40° C between 20-80% RH |
| Blank Tube Background | <= NIOSH LOD for the target vapor |
| Standards Compliance | ISO 22065 |
Many Zefon sorbent tubes are divided into sections, with two absorbent sections being most common. The first section is twice the size of the back section and collects the compounds of interest. The second section is a backup section to determine if airborne contaminants breakthrough occurred in the front section.These high-quality glass sorbent tubes are packed with accurately weighed, high purity sorbents. They are designed to adsorb vapors and gases passed over them when used with low flow sampling pumps and fit a variety of tube holders, including the Zefon Gemini Twin Port Sorbent Tube Sampler.
Features:
- Highest sorbent material purity for contamination-free samples.
- Accurate sorbent weight for uniform testing results.
- Uniform pressure drop to assure repeatable sampling results.
- Designed to comply with all NIOSH specifications for tube dimensions, sorbent quality, particle size, divider composition, and pore size.
- Physical dimensions to assure proper fit in tube holder systems.
- Charcoal is pure coconut shell charcoal, 20/40 mesh, thermally activated at 600° C.
- Includes plastic end caps.
Check out our Sorbent Tube Product Brochure.
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