Description
Gastec 252S-20 Silica Gel Tube accurate air quality analysis begins with the right collection media. The Gastec 252S-20 Silica gel tube provides a superior solution for monitoring volatile organic compounds (VOCs) that exhibit high polarity. Unlike non-polar adsorbents, the high-grade silica gel within this tube has a strong chemical affinity for polar molecules, ensuring that vapors are effectively captured as air is drawn through the sampling system.
The design features two distinct layers of silica gel (100mg and 50mg) separated within the glass tube. This dual-layer approach is a critical safety feature; the primary layer captures the majority of the contaminant, while the secondary layer acts as a breakthrough indicator. If analysis shows high concentrations in the second layer, it alerts the technician to potential sample saturation, preserving the scientific validity of the measurement. With a standardized dimension of 4.3 x 70mm, this tube integrates seamlessly with most professional sampling pumps.
