permeability testing Applications
Manufacturers of bandages and permeable membranes must comply with tests to determine the extent of permeability of the finished product. Quality can be improved and wastage reduced if the moisture can be measured quickly and reliably.
By Moisture Control & Measurement Ltd based in Wetherby, UNITED KINGDOM.
The measurement of oxygen and water vapor permeation is often critical in medical and pharmaceutical applications; to prevent contamination, to extend the shelf life and potency of drugs and to ensure powders do not clog. Systech`s permeation analyzers and corresponding software conform to 21CFR Part 11.
By Systech Instruments Ltd based in Thame, UNITED KINGDOM.
The gas generators for calibration based on the use of “Method of Permeation Tubes.”. The permeation tubes are sealed capsules containing a small amount of the component that is in contact with a permeable membrane stable. The permeation through the membrane produces a vapor of the compound of the component of small quantity, very stable as a stream in time. This permeate stream by mixing with a dilution gas controlled and precise (for example nitrogen) creates a mixture in track at the desired concentration. The flow of the permeate is measured metrically through severe weight loss of the tube thus ensuring a standard high precision.
By ETG Risorse e Tecnologia based in Montiglio, ITALY.
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