Description
Gastec 258-20 Activated Charcoal Tube reliable exposure data begins with high-quality collection media. The Gastec 258-20 Activated charcoal tube operates on the principle of physical adsorption, where organic molecules are trapped within the microscopic pores of high-activity charcoal. When used in conjunction with a professional sampling pump, this tube effectively strips non-polar contaminants from the air stream for later analysis via gas chromatography.
A critical advantage of the Gastec 258-20 Activated charcoal tube is its dual-layer safety design. The primary layer contains 100mg of activated charcoal to capture the bulk of the target vapors, while a secondary 50mg layer serves as a breakthrough indicator. This setup allows laboratory technicians to verify if the primary adsorbent reached its capacity during the sampling period, ensuring that no data was lost and that the final concentration report is scientifically valid. Its compact 4.0 x 70mm dimensions make it universally compatible with standard tube holders and manifolds.
