EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 3856-3 testing. The principle consists of aspiration of the test solution into a dinitrogen monoxide/acetylene flame. The ionization of barium atoms in the flame is suppressed by the addition of potassium chloride. The method is applicable to coating materials having "soluble" barium contents in the range of about 0,05% (m/m) to 5% (m/m). This method is the arbitration method in cases of dispute.
The purpose of this standard is to provide a reliable and accurate method for quantifying the soluble barium content in paints and varnishes, as barium is a toxic metal that can pose health risks if swallowed or inhaled.
The method involves using a flame to vaporize the sample and then analyzing the resulting vapor using an atomic emission spectrometer. This method provides a direct measurement of the amount of barium present in the sample.
The sample is prepared by dissolving the paint or varnish in a suitable solvent, and the standard specifies the appropriate solvents to be used for the different types of paints and varnishes.
ISO 3856-3 also specifies the precision and accuracy of the method as well as the calibration of instruments used for analysis. The standard provides guidelines for method validation, including determining the limit of detection and limit of quantification.
By following the procedures outlined in ISO 3856-3, paint and varnish manufacturers, testing laboratories and regulatory agencies can ensure that the barium content in paints and varnishes is measured accurately and reliably and products containing excessive barium are not released into the atmosphere.
EUROLAB assists manufacturers with ISO 3856-3 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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