Description
Gastec 258A-20 Activated Charcoal Tube achieving accurate results in environmental and occupational health monitoring requires high-quality adsorption media. The Gastec 258A-20 Activated charcoal tube utilizes premium activated carbon to trap airborne contaminants through physical adsorption. As air is drawn through the tube by a sampling pump, non-polar solvent vapors are securely bound within the carbon pores, allowing for precise quantification via Gas Chromatography (GC) analysis.
The dual-layer structure of the Gastec 258A-20 Activated charcoal tube offers a significant advantage for long-duration sampling or high-concentration environments. The primary layer contains 400mg of charcoal to capture the majority of the vapor, while the 200mg secondary layer acts as a breakthrough indicator. By analyzing these layers separately, laboratories can confirm whether the sampling capacity was exceeded, ensuring the scientific validity of the exposure data. With a standard 8.0 x 110mm glass construction, it integrates seamlessly into existing sampling protocols.
