Dynacal Permeation Tube

Dynacal perm tubes and wafer permeation devices are small, inert capsules containing a pure chemical compound in a two phase equilibrium between its gas phase and its liquid or solid phase. At a constant temperature, the device emits the compound through its permeable portion at a constant rate. Perm tubes and wafer devices are typically inserted into a carrier flow to generate test atmospheres for calibrating gas analyzer systems, testing hazardous gas alarms, or conducting long-term studies of effects on materials or biological systems – in short, any situation requiring a stable concentration of a specific trace chemical Download Brochure Specifications Benzene 1.0 cm HE perm tube cas# 71-43-2 PDPT-1400C6H6 Max. Total Length: 7.0 cmMax. Diameter: 1.1 cm30°c 50 ng/min35°c 65 ng/min40°c 112 ng/min45°c 150 ng/min50°c 400 ng/min60°c 700 ng/min70°c 1,000 ng/min80°c 2,100 ng/min90°c 3,785 ng/min100°c 5,520 ng/minMercury 1.0 cm HESR perm tube cas# 7439-97-6 PDPT-0030HgMax.Total Length: 7