Road vehicles. Heavy commercial vehicles and buses. Steady-state circular tests1 Scope This International Standard specifies tests for determining the steady state directional control response of heavy vehicles, one of the factors composing vehicle dynamics and road holding properties. It is applicable to heavy vehicles, i. e. commercial vehicles, combinations, buses and articulated buses as defined in ISO 3833, covered by Categories M3, N2, N3, O3, and O4 of UNECE (United Nations Economic Commission for Europe) and EC vehicle

It introduces the following principal changes:

Active power

centrifugal test

Because it sets out a range of test levels to find out how equipment reacts in specified operational conditions to surge voltages caused by switching and lightning effects

It also includes the minimum requirement concerning contents of the operating instructions

BS 6229 is a British standard specifying a code of practice for flat roofs with continuously supported flexible waterproof coverings

Flexibility when using linear referencing systems

The standard defines a generalized structure which can be used to transmit

Free fatty acids content is a conventional expression of the percentage by mass of free fatty acids

This International Standard specifies a method for determining fibre coarseness using polarized light

it is indicated in the order

The additional requirements are specified in the appropriate product standard