ISO 12103-1

ISO 12103-1 is an international standard that defines a test method for measuring the fine particles present in a sample of granular or powdered material, like soil or aggregate. It specifies the use of a standardized test dust, known as the "test dust," to evaluate how well filtration systems or materials can trap small particles. This helps ensure consistency and reliability in testing procedures across different laboratories and industries, particularly in construction, environmental science, and manufacturing. Overall, it provides a way to systematically assess the performance of filtration and separation processes involving particulate materials.