General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 42342.2-2023
Introduction
GB/T 42342.2-2023 Particle size distribution liquid-phase centrifugal sedimentation method Part 2: Photoelectric centrifugation method is a standard that specifies the method for determining the particle size distribution of powders using the photoelectric centrifugation method.
The photoelectric centrifugation method is a widely used technique for analyzing particle size distribution. It utilizes the principle of sedimentation under centrifugal force and measures the particle size based on the optical properties of particles. This method is suitable for particles with a size range of 0.1 μm to 100 μm.
The standard provides detailed guidelines for the experimental setup, sample preparation, and data analysis procedures. It outlines the necessary equipment and instruments required for conducting the analysis, such as a centrifuge, light source, and photodetector. Additionally, it specifies the parameters to be measured, including the sedimentation velocity, light intensity, and particle concentration.
By following the procedures outlined in GB/T 42342.2-2023, accurate and reliable particle size distribution data can be obtained. This information is crucial in various industries, including pharmaceuticals, cosmetics, and materials science, where particle size plays a significant role in product performance and quality control.
In conclusion, GB/T 42342.2-2023 provides a standardized approach for analyzing particle size distribution using the photoelectric centrifugation method. Its guidelines ensure consistent and accurate results, contributing to the advancement of particle analysis techniques.
GB/T 42342.2-2023 history
2023GB/T 42342.2-2023 Liquid Phase Centrifugal Sedimentation Method for Particle Size Distribution Part 2: Photoelectric Centrifugal Method