ASTM D859 Standard Test Method for Silica in Water

EUROLAB laboratory provides testing and compliance service within the scope of ASTM D859 standard. This test method, the determination of silica in water and wastewater; however, the analyst should be aware that the expressions of precision and accuracy for reactive water solutions may not be valid for water in different matrices.

This test method is a colorimetric method that determines molybdate reactive silica. Applies to most waters, but some waters may require filtration and dilution to remove interference from color and turbidity.

This test method covers the photometric determination of molybdate reactive silica in water. Due to the complexity of silica chemistry, the measured form of silica is defined by the analytical method as molybdate reactive silica. Forms of silica reactive with molybdate include dissolved simple silicates, monomeric silica and silicic acid, and an indeterminate fraction of polymeric silica.

Values ​​stated in SI units should be accepted as standard. No other units of measurement are included in this standard.

This standard does not purport to address all, if any, safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory restrictions prior to use.

EUROLAB assists manufacturers with ASTM D859 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.