Graphical symbols. Test methods - Method for testing comprehensibility1 Scope This part of ISO 9186 specifies a method for testing the comprehensibility of graphical symbols. It provides a measure of the extent to which a variant of a graphical symbol communicates its intended message. The purpose of this part of ISO 9186 is to ensure that graphical symbols and signs using graphical symbols are readily understood. The intention is to encourage the development of graphical symbols which are correctly understood by users

drawn wires

it specifies characteristics that include the performance level required for carrying out safety functions

Helps highway authorities specify the level of end-performance required for different road classes – the BS EN standards only prescribe different performance categories

Who is BS EN 61754-18 - Type MT-RJ connector family for

industry and legal expectations

— Classify the conventional charging policies and the new charging policies and their functional requirements

It is the intention that TV-based decoders can be implemented in a cost-effective manner without recourse to the technology normally associated with personal computers

but they should be of the same order of magnitude

for internal wiring

tyre/road friction

BS EN 60335-2-85 does not take into account:

This European Standard specifies test methods for concrete roofing tiles and fittings conforming to EN 490