Feature Akron Abrasion Resistance DIN Abrasion Resistance

Standard BS 903 A9 ASTM D5963/ISO 4649

Mechanism A test specimen is pressed against a rotating abrasive wheel at a specified angle and load. A test specimen is pressed against a rotating drum with abrasive paper under a fixed load.

Measurement Volume loss over a set number of cycles Volume loss over a set distance

Requirement Lower volume loss = better abrasion resistance Lower volume loss = better abrasion resistance

Test period Long test period Short test period

Standard

BS 903 A9

ASTM D5963/ISO 4649

Mechanism

A test specimen is pressed against a rotating abrasive wheel at a specified angle and load.

A test specimen is pressed against a rotating drum with abrasive paper under a fixed load.

Measurement

Volume loss over a set number of cycles

Volume loss over a set distance

Requirement

Lower volume loss = better abrasion resistance

Lower volume loss = better abrasion resistance

Test period

Long test period

Short test period