This Technical Specification specifies a method for the determination of the breaking and immediate adhesivity behaviour of cationic bituminous emulsions in contact with an aggregate. The method applies to emulsions used for surface dressing applications and can be used for formulation and production control purposes. WARNING - The use of this Technical Specification may involve hazardous materials, operations and equipment. This Technical Specification does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this Technical Specification to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.