CEN/TC 336/WG 5 - Industrial bitumens

This European Standard specifies a method for the determination of the dynamic viscosity of bituminous binders at a range of temperatures by means of a coaxial viscometer. The typical range of application is from 50°C to 250°C using a rotating spindle apparatus. The method can be used to measure the apparent viscosity of bitumen at application temperatures.

This European Standard specifies a method for the determination of the staining tendency of bitumen. The method is applicable to bitumen having a ring-and-ball softening point greater than or equal to 80°C. Note 1: Staining properties are related to the colloidal stability of the bitumen with higher values indicating lower stability. The procedure described in this standard may be used to compare results against a material for which the staining tendency is known.

This European Standard specifies a framework for the specification of oxidized bitumen used mainly in roofing, waterproofing and adhesives. Within Europe several types of oxidized bitumens are used and, dependent on climatic conditions, type of building construction and traditional practices, different grades may be used for the same purpose. The framework given in this standard provides a basis for quality agreements to be established between supplier and client.

This European Standard specifies a framework for the specification of hardgrade bitumen used mainly in flooring, varnishes, mineral rubber, roofing and mastic. Within Europe several types of hargrade bitumens are used, and dependent upon traditional practices, different grades may be used for the same purpose. The framework given in this standard provides a basis for quality agreements to be established between supplier and client.

This European Standard specifies a method for the determination of the loss in mass of industrial bitumens after heating. The method is used to detect volatile contaminants.