Permeability Tester

Our products are manufactured & supplying using high grade raw material and contemporary technology in compliance with international standards. These instruments are highly used in various industries to measure the permeability of vapor.

Principles

The basic principle is based on the law of diffusion.

F = -m [dp/dx]

F is the flow through the sample, [dp/dx] is the pressure gradient through the thickness of the sample, and M is the measurement of diffusion rate.

The instrument is designed to accurately measure pressure and flow rate. The sample room is empty, and the steam is kept under constant pressure on the side of the sample, and the pressure is increased on the other side of the sample. According to the pressure gradient, the data is used to calculate the steam penetration rate per unit area per unit area.

Applications

Many applications of porous materials require very low vapor permeability through the material. These applications are found in many industries, including biotechnology, health care, pharmaceuticals, food, and packaging, environmental, and power box chemicals. The determination of the low current rate of the material used in these applications is an important condition for assessing the process.

Applicable industry:

Biotechnology & healthcare pharmaceutical paper

Non-woven fuel cell textiles

Features

The sample chamber is maintained at a constant temperature for yielding reliable and reproducible data.

Fully automated

Very little operator involvement

Test time: Can be as little as a few minutes

Robust. Minimal maintenance

Measurable flow rate. As low as 10-4 cm3/s

Application test: water vapor permeability, gas permeability, diffusion permeability

Operating conditions: raise temperature, high pressure, many steam test

Non destructive

The automatic control

Technical Parameters