PDA Technical Glossary
PDA Technical Reports are highly valued membership benefits because they offer expert guidance and opinions on important scientific and regulatory topics and are used as essential references by industry and regulatory authorities around the world. These reports include terms which explain the material and enhance the reader’s understanding.
The database presented here includes the glossary terms from all current technical reports. The database is searchable by keyword, topic, or by technical report. Each definition provided includes a link to the source technical report within the PDA Technical Report Portal.
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Membrane
A thin, microporous medium used to remove particles and microorganisms from a fluid stream under pressure. (TR26)
Analytical technique to collect particles from a liquid sample on a membrane filter followed by manual examination (sizing and counting) with a microscope. (TR85)
Source:
Particle
Any discrete unit of material structure; a discernible mass having an observable length, width, thickness, size and shape. (TR45) (TR26)
Foreign material which is unintended and either removable from the surface of a primary packaging component or freely moving within a filled and sealed pharmaceutical dosage form. The term particle is used interchangeably with “particulate” and “particulate matter” without any intended difference in meaning. (TR85)