ISO 8130-5 Determination of Flow Properties of Coating Powders, Powder Air Mixture

Material Testing

ISO 8130-5 Determination of Flow Properties of Coating Powders, Powder Air Mixture

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 8130-5 testing. This standard reflects commercial practice in powder spraying. Its principle is that under draft-free conditions, a certain amount of coating powder is placed in a container and fluidized with clean dry air under standard atmospheric temperature and pressure conditions.

ISO 8130-5 Determination of Flow Properties of Coating Powders, Powder Air Mixture

The height of the powder is measured during and after fluidization, and a given orifice flow rate of the fluidized powder is then determined. The measurements are used to calculate the fluidization factor and powder flow rate, which together define the conveying and spraying properties of the powder.

The results obtained are affected by the composition, density, particle size distribution and particle shape of the coating powder, as well as the tendency of the particles to agglomerate and accept a triboelectric charge. It is well known that the conveying and sputtering properties of powders are highly dependent on their bulk and air flow properties.

In this standard, it is considered to be more meaningful than the "flow angle" approach, which is sometimes used to evaluate bulk flow properties. In the second, the angle of the cone formed when a powder is allowed to flow from a vertical funnel onto a horizontal surface is measured. A given mass of powder with good flow properties will form a shallower cone than an even mass of powder with weaker flow. Objections to the flow angle method are that it is difficult to obtain an exact measurement and that the powder is used alone, mixed with air during application.

EUROLAB assists manufacturers with ISO 8130-5 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.

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