|Asbestos Overview and Handling Recommendations (GTZ, 1996)|
|Part III. Asbestos substitutes|
|3 Fiber substitutes for Asbestos fibers in the building area|
Organic synthetic polyacrylnitrile fibers (PAN-fibers) can be manufactured for technical applications with a diameter above 18 pm. They therefore lie outside the range penetrable to the lungs. A lengthwise splitting under mechanical wear is only conditionally possible. PAN-fibers are used for reinforcement in the areas of filtration, friction linings, structural elements and other construction products (as reinforcement up to 2 % in fibrous cement), etc..