What is ISO 11929:2010?

ISO 11929:2010 is an international standard that provides guidelines and procedures for measuring the particle size distribution of powders using dynamic light scattering (DLS) technique. This technique involves analyzing the intensity fluctuations of laser light scattered by particles in a sample to determine their size distribution.

The Importance of ISO 11929:2010

ISO 11929:2010 plays a crucial role in various industries, such as pharmaceuticals, cosmetics, and materials science. It ensures accurate and reliable measurement of particle size, which is essential for product quality control and development.

By following the guidelines outlined in ISO 11929:2010, manufacturers can assess the performance and characteristics of their powders, monitor changes in particle size over time, and make informed decisions regarding process optimization and formulation adjustments.

Key Components of ISO 11929:2010

ISO 11929:2010 specifies the requirements for sample preparation, instrument calibration, measurement procedures, data analysis, and reporting of particle size distribution results.

Sample preparation involves ensuring sample homogeneity and dispersion. Proper calibration of the instrument is necessary to obtain accurate measurements. The measurement procedure includes selecting appropriate measurement parameters such as scattering angle and wavelength, as well as monitoring the stability of the sample during measurement.

Data analysis entails processing the intensity fluctuations to determine the particle size distribution using mathematical algorithms. Finally, the results are reported, including information on measurement uncertainty and any deviations from the standard methodology.

Benefits of ISO 11929:2010

ISO 11929:2010 provides several benefits:

Ensuring reliable and comparable results across different laboratories and instruments

Improving the accuracy and precision of particle size measurements

Enhancing product quality control and development

Facilitating international trade by harmonizing measurement techniques

Overall, ISO 11929:2010 is a vital standard that promotes standardized procedures for measuring particle size distribution, enabling industries to confidently assess and control the quality of their powders.