DCAT measuring instruments
Advanced instrumentation engineered&nbsp;for classical and new measuring techniques.
The wetting properties of com­mon solids can be measured with electronictensiometers, which have evolved into&nbsp;dynamic contact angle meters. The extensive application of internal and external computer control has provided for a high level of automation and the generation of highly reproducible results in the determination of wetting properties exhibited by powders, fibres, and fabrics as well as the thermodynamic properties of surfactant solutions.
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DCAT assessories
Our modular design philosophy allows countless variations.
The&nbsp;tensiometers&nbsp;from DataPhysics can be applied, with the inclusion of a range of standard accessories, to a wide range of measuring situations and sample geometries. The accessories for the DCAT modular system provide solutions suitable for the diverse needs of our users, whether for films, sheets, fibres, powders, or magnetic and fabric materials.
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Dynamic contact angle measuring instruments and tensiometers DCAT
In many diverse engineering applications the ability of liquids to wet solids affects the quality of the finished products and the integrity/reproducibility of the manufacturing processes. Some important examples of this are the production and application of paints and varnishes, the development and the optimisation of composite materials, the use of adhesives and selection of solvents for engineering materials, and the biocompatibility of medical implants. Reliable analytical data is provided via the precise evaluation of static and dynamic contact angles, the surface free energy of solids and the surface and interfacial tension of liquids. Last but not least, the recent, rapid, advance­ments in nanotechnology and biotechno­logy have been possible, only, through an exact know­ledge of wetting processes in the sub-microscopic level.
References for national and international standards
The&nbsp;dynamic contact angle measuring instruments&nbsp;and&nbsp;tensiometers&nbsp;of the DCAT series&nbsp;are based on the latest balance technologies developed by the company Sartorius AG, Germany. The monolith balance systems used by our instruments operate on the principle of electro dynamic compensation, to combine the maximum precision with the greatest possible stability. The DCAT measuring instruments are fitted with 100 g reference masses of class E2 (±0.15 mg) as specified under R111 of the International Organization of Legal Metrology (OIML).Monolith precision balance module

This ensures that all&nbsp;tensiometerreadings comply with national and international standards, for example:
 ISO 6295 Determination of interfacial tension of oil against water. ISO 6889 Surface active agents -determination of interfacial tensionby drawing up liquid films. ASTM D971-99a&nbsp;Standard test method for interfacial tension&nbsp;of oil against water by the ring method. ASTM D1417-03a Standard method of testing rubber latices - synthetic. DIN EN 14210 Surface active substances&nbsp; (Determination of interfacial tension of surface active solutions by frame and ring method).
