A 1 Abrasion test (Taber test)Defin

A 1 Abrasion test (Taber test)
Definition
The abrasion test is used to determine the resistance of material surfaces to abrasive stress.
Explanation
With this test method the resistance of a test specimen to a defined, mechanical stress on its surface (abrasive stress) can be determined.
Relevance of test to paper processing
Rather than the (décor) paper itself, this is usually applied to the finished laminate, as used in practice for worktops, flooring etc.. Flooring panels in are subjected to severe mechanical stress, the aim being to protect the actual printed pattern against wear or abrasion for as long as possible.
The method described here is an indication of abrasion resistance in everyday use.
Measuring device and measurement principle
The test is carried out according to German Industrial Standard, European Norm (DIN EN)13329 (see also DIN 53799) using an abrasion measuring device (Taber Abraser).
The test specimen is first divided into four marked quadrants and then secured in the measuring device. Calibrated sandpaper is attached to the two abrading wheels, which have a defined weight (each wheel 5.4 ±0.2 N). The wheels are placed on top of the test specimen. After pressing the start button the specimen holder rotates with a constant speed. The sandpaper is renewed after 200 revolutions (or earlier if necessary). The initial abrasion point (IP) is reached when worn down spots each at least 0.60 mm2 in area are visible in two quadrants and an equally large spot appears in a third quadrant.