ISO 20918:2007 PDF

Scope: This International Standard describes a method to evaluate the braking threshold of heavy commercial vehicle combinations with pneumatic braking systems, by means of a roller brake tester. This International Standard describes procedures for workshops and garages and provides - a recommended pressure range of the system threshold pressure for motor vehicles and trailers, and - a recommended practice for determining the system threshold pressure. This International Standard covers neither high-pressure compatibility, including the control of the coefficient of friction between lining/pad and drum/disc, nor dynamic influences. This International Standard is not for use at Type Approval.

ISO 20918:2007 Referenced Document

ISO 21069-1 Road vehicles - Test of braking systems on vehicles with a maximum authorized total mass of over 3,5 t using a roller brake tester - Part 1: Pneumatic braking systems
ISO 611 Road vehicles - Braking of automative vehicles and their trailers - Vocabulary

2007 ISO 20918:2007 Road vehicles - Braking threshold pressures for heavy commercial vehicle combinations with fully pneumatic braking systems - Test with roller brake tester