GB/T 46398-2025

GB/T 46398-2025 specifies the technical requirements, test methods, and inspection rules for loss-in-weight feeders, which are continuous gravimetric feeding devices used to precisely control material flow rates by measuring weight loss over time. This standard applies to the design, manufacturing, and calibration of such feeders in industries like chemical processing, food production, and pharmaceutical manufacturing, where accurate dosing of powders, granules, or liquids is critical. It ensures consistent performance in automated batching and blending systems, providing a metrological basis for quality assurance and regulatory compliance.