ISO 5167 (International Organization for Standardization)

ISO 5167 is an international standard that specifies methods for measuring the flow rate of liquids and gases in pipes using specialized devices called flow meters. These devices, such as venturi tubes, orifice plates, and flow nozzles, create pressure differences that allow accurate calculation of flow. The standard provides guidelines for designing, installing, and maintaining these measurement systems to ensure consistency, reliability, and accuracy across different industries. Essentially, ISO 5167 helps ensure that flow measurements are performed uniformly and precisely, enabling better process control, safety, and regulatory compliance.