Bituminous mixtures. Test methods for hot mix asphalt - Determination of the ash content of natural asphalts included-in-kit Design and construction requirements for

Design and construction requirements for position-indicating devices have been modified

Charging of trolley buses

BS EN 3973 specifies the requirements relating to:

the preparation of a test specimen for each type is prescribed

Bituminous mixtures. Test methods for hot mix asphalt - Determination of the ash content of natural asphalts included-in-kit Design and construction requirements for1 Scope This European Standard describes a test method to determine the ash content in natural asphalts (including lake asphalts), binders containing natural asphalts or bitumens. For the method to apply, it is essential that any mineral matter in the binder be finely divided and cannot exceed 45 % by mass.