To fulfill the BWM GS97034-2 fingernail scratch test and BMW GS97034-3 shoe sole scratch test, a designated model ABREX®-E is supplied to the adequate scratch speeds of 20cm/s for the fingernail PMMA scratch and 70cm/s for the shoe sole scratch respectively.
Together with the standardized leather and SBR discs of both 45 & 55 degrees geometry, ABREX®-E is proven to give repeatable scratch results.
Description
ABREX®-ABRASION, is a soft-chemo-mechanical fingertip & hand abrasion. The simulated wear pattern matches reality with 99% accuracy.
It is a highly complex abrasion process which involves:
A 45° angle impact driven by a dynamic pneumatic cylinder attached with a viscoelastic fingertip under a defined load
Then a friction rubbing or tumbling motion between the sample and a textile containing dirt, dandruff, oil, sweat or various types of testing liquids
Followed by a retraction movement with or without the contact at the surface depending on the application.
Specification
Application
ABREX®-E has two separate modes: standard ABREX® and an additional E mode.
Within the standard mode, various tests can be performed according to IEC 68-2-70/DIN 60068.
The additional E mode is designed to comply with BMW GS 97034-2 and GS 97034-3 specifications and can best simulate:
• Human fingernail scratch which occurs often in the interior parts of the car
• Shoe sole scratch test which occurs often when the customer entering the car with the unavoidable shoe sole scratch/scuff marks on the driver’s side door and the bottom part of the driver’s seat
Downloads
Links
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