Physical properties of flax fibre for non-textile-use

The industrial use of natural fibre has been continuously increasing since 1996. In the interior of cars, the percentage of fibre-reinforced multi-material parts may reach 40%. Quality management needs standards for measuring reliable physical properties. The aim of the article is to summarise the appropriate and approved methods for measuring geometrical, gravimetrical, and mechanical properties of flax fibre. Test standards are also needed for fibre-reinforced plastics, an additional method is explained and compared with the existing standards. The use of these methods is demonstrated using selected test data.