What is EN ISO 17918:2019?

EN ISO 17918:2019 is a technical standard that provides guidelines and testing methods for the determination of particle size distribution (PSD) in powder materials. The standard, developed by the International Organization for Standardization (ISO), defines a set of procedures to measure the particle size of various powders used in industries such as pharmaceuticals, chemical engineering, and materials science.

The Importance of Particle Size Distribution

Particle size distribution plays a crucial role in determining the properties and performance of powder materials. It affects a wide range of characteristics, including flowability, compressibility, packing density, and surface area. Understanding the PSD is essential for designing and optimizing processes, as well as ensuring product quality and consistency.

Methods for Particle Size Determination

EN ISO 17918:2019 outlines several methods for determining particle size distribution. One common method is laser diffraction, which measures the intensity of light scattered by particles as a function of their size. This non-destructive technique provides fast and accurate results, making it suitable for routine analysis. Another method is sedimentation, where the rate of settling of particles in a liquid is measured. This method is often used for fine particles that are difficult to analyze using other techniques.

Benefits and Applications

The adoption of EN ISO 17918:2019 brings several benefits. It enhances comparability and harmonization of particle size measurements across different laboratories and industries. Consistent measurement methods enable more accurate data analysis and facilitate scientific research and development. Moreover, the standard promotes good manufacturing practices, ensuring product quality and safety.