WEST CONSHOHOCKEN, PA – A proposed ASTM International standard (WK45240) will set out a general approach to the particle size distribution measurement of powders, suspensions or slurries using an appropriate wet or dry methodology by the laser diffraction technique. ASTM’s committee on particle and spray characterization (E29) is developing the proposed standard. This effort directly relates to the United Nations Sustainable Development Goal #9 on industry, innovation, and infrastructure.

“The proposed standard should allow anyone that has a laser diffraction instrument for the measurement of particle size distribution to develop methods in a scientifically logical manner providing repeatability, reproducibility, and robustness,” said ASTM International member Alan Rawle. “The main users will be companies in the pharmaceutical, construction materials, food and beverage, ceramics, and mining industries, among others.”

Applications in which particle size distribution is used to control final performance, saving time, yield, and money, include the paint and coatings industry. In addition to industry, regulatory bodies and laboratories that work with laser diffraction equipment will find the proposed standard useful.

Learn more about the proposed standard at www.astm.org/workitem-wk45240.