EN 12697/1 • ASTM • AASHTO for extraction and binder content determination of bituminous materials. As solvent for this closed system high stabilized trichlorethylene or on option perchlorethylene or methylenchloride can be used.

The basic principle of the Asphaltanalysator for the determination of sieve analysis, binder content and if requested binder quality of bituminous mixes by

• elution of binder using a washing chamber and a rotating sieve drum
• separate filler and binder/solvent in a high performance centrifuge
• attached distillation unit to separate binder and solvent
• drying of minerals and filler and re-use of solvent in a closed system still remains the best available technology. This does not mean that the machines have remained unchanged since 1997. Several details have been modified in the meantime and further development and innovation is going on. Nowadays machines
• have a new centrifuge with almost double endurance
• are equipped with a diagnostic inspection system
• are available with several options to further reduce the direct contact with solvent (20-1100E200 / 20-1100E220/ 20-9830)

One of the most essential points of innovation and further development is the again reduced solvent loss per extraction. The value calculated according our internal quality criteria was stated for earlier supplied machines with < 50 ml. For the new Asphaltanalysator this important value can be stated with < 20 ml allowing us to award the machine with the infraTest ecological seal of approval ecoTest.