powder grades

https://doi.org/10.1351/goldbook.15226
Defined for powders used pharmaceutically, according to particle sizes.
Note: It is required that when the fineness of a powder is described by a number, all particles must pass through a sieve with aperture diameter in microns equal to that number.
Source:
PAC, 2009, 81, 971. (Glossary of terms related to pharmaceutics (IUPAC Recommendations 2009)) on page 994 [Terms] [Paper]
Citation: 'powder grades' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.15226 RIS BibTex EndNote
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