Testing acc. to BMW AA-0412: Abrasion Test of Leather by Means of a Ball Plate (replacement for AA-N 070)
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Testing methods
Our test laboratory carries out tests according to BMW Standard AA-0412 in an accredited procedure. This Martindale abrasion test on leather using a ball plate is a standardized method for determining the abrasion and wear resistance of leather and bonded leather materials used in automotive applications. The test methodology is designed to evaluate the mechanical durability and service performance of leather materials that are subjected to repeated mechanical stress in vehicle interiors, such as seat upholstery, trim components and steering wheel covers.
Test procedure
In the abrasion test according to BMW AA-0412, standardized leather specimens are tested under defined conditions. Unlike purely manual rubbing tests, this method uses a ball plate that generates uniform abrasive movements on the leather surface, thereby assessing the material’s resistance to repeated mechanical wear. Typically, the specimen is subjected to a specified number of abrasion cycles under a defined load. The resulting wear and abrasion effects are systematically recorded and subsequently evaluated.
The test is widely used for automotive leather, bonded leather materials and other interior surface materials. It provides valuable information for material development, quality assurance and supplier approval processes. The results help to assess the long-term durability of leather surfaces under realistic service conditions and are often considered in conjunction with other performance tests, such as colour fastness, scratch resistance, flex resistance and environmental ageing tests.
