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.
BS EN 12697-47:2010 history
2023BS EN 12697-47:2023 Bituminous mixtures. Test methods - Determination of the ash content of natural asphalts
2010BS EN 12697-47:2010 Bituminous mixtures.Test methods for hot mix asphalt. Part 47:Determination of the ash content of natural asphalts