AS 7504 - Brake Blocks

The objective of this Standard is to provide safety benefits in that proper braking performance contributes to the prevention of collisions or derailments of railway rolling stock by providing controls for known hazards.

This standard describes minimum standards for brake performance, features and compatibility for the braking systems of hauled Freight and Passenger Rolling Stock.

This Standard is intended to compliment the rolling stock compliance certification process outlined in AS 7501, including all vehicle types such as new, modified and heritage rolling stock.

This Standard provides mandatory and recommended requirements for the differing engineering options to protect running lines against unauthorized movements of rolling stock.

This Standard describes requirements for rolling stock wheels.
The main purpose of the requirements are to reduce the risk of derailment arising from wheel failure or damage to infrastructure caused by wheel defects.