BS EN ISO 4497:2020 - Metallic Powders: Determination of Particle Size by Dry Sieving

Welcome to the comprehensive guide on the BS EN ISO 4497:2020 standard, a crucial document for professionals dealing with metallic powders. This standard provides a detailed methodology for determining the particle size of metallic powders through the process of dry sieving, ensuring precision and consistency in your measurements.

Overview of BS EN ISO 4497:2020

The BS EN ISO 4497:2020 is an internationally recognized standard that outlines the procedure for determining the particle size distribution of metallic powders. Released on May 19, 2020, this standard is essential for industries where the particle size of metallic powders can significantly impact the quality and performance of the final product.

Key Features

• Standard Number: BS EN ISO 4497:2020
• Pages: 14
• ISBN: 978 0 539 03630 5
• Status: Standard

Importance of Particle Size Determination

In the realm of metallic powders, particle size is a critical parameter that influences various properties such as flowability, packing density, and surface area. Accurate determination of particle size is vital for:

• Quality Control: Ensuring that the metallic powders meet the required specifications for their intended application.
• Process Optimization: Enhancing manufacturing processes by understanding the behavior of powders during production.
• Product Performance: Affecting the mechanical and physical properties of the final product, such as strength, porosity, and thermal conductivity.

Methodology: Dry Sieving

The dry sieving method described in the BS EN ISO 4497:2020 standard is a widely used technique for particle size analysis. This method involves passing the metallic powder through a series of sieves with different mesh sizes to separate particles based on size. The process is straightforward yet effective, providing reliable data for particle size distribution.

Advantages of Dry Sieving

• Simplicity: The method is easy to perform and does not require complex equipment.
• Cost-Effectiveness: It is a low-cost method compared to other particle size analysis techniques.
• Non-Destructive: The process does not alter the physical properties of the powder.

Applications of BS EN ISO 4497:2020

This standard is applicable across various industries, including:

• Metallurgy: For the production and quality control of metal powders used in sintering and additive manufacturing.
• Chemical Engineering: In processes where precise particle size distribution is crucial for reaction kinetics.
• Pharmaceuticals: Ensuring uniformity in metallic powder formulations used in drug delivery systems.

Why Choose BS EN ISO 4497:2020?

Adopting the BS EN ISO 4497:2020 standard ensures that your particle size determination processes are aligned with international best practices. This not only enhances the credibility of your quality assurance processes but also facilitates compliance with industry regulations and standards.

Benefits of Compliance

• Consistency: Achieve uniformity in particle size analysis across different batches and production lines.
• Reliability: Gain confidence in the accuracy and repeatability of your particle size measurements.
• Global Recognition: Align with a standard that is recognized and respected worldwide.

Conclusion

The BS EN ISO 4497:2020 standard is an indispensable tool for professionals working with metallic powders. By providing a clear and precise methodology for particle size determination through dry sieving, it ensures that your processes are efficient, reliable, and compliant with international standards. Whether you are in metallurgy, chemical engineering, or pharmaceuticals, this standard will help you achieve excellence in your particle size analysis.

BS EN ISO 4497:2020

This standard BS EN ISO 4497:2020 Metallic powders. Determination of particle size by dry sieving is classified in these ICS categories:

• 77.160 Powder metallurgy

This document specifies a method of determining the particle size distribution of metallic powders by dry sieving into size fractions.

The method is applicable to dry, unlubricated metallic powders, but not applicable to powders in which the morphology differs markedly from being equiaxial, for example flake-type powders.

The method is not applicable to metallic powders having a particle size wholly or mostly under 45 µm.