The BS EN 12375-2009 standard specifies methods for the determination of film thickness of soft aluminium tube walls, which are suitable for aluminium tubes for Encasement in the fields of pharmaceuticals, cosmetics, hygiene, food, etc. The standard describes in detail the specific steps for the measurement of film thickness of aluminium tube body materials to ensure the quality control and conformity of the Encasement material. This standard allows for the accurate assessment of the wall thickness of aluminium tubes, which is essential to ensure the integrity and functionality of the product Encasement.