PDA Technical Glossary
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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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TR 82: Low Endotoxin Recovery TR 57: Analytical Method Validation
Potency
The measure of the biological activity using a suitably quantitative biological assay, based on the attribute of the product that is linked to the relevant biological properties. (TR57) An expression of the activity of a secondary calibration standard to relate units of weight (ng/ vial or ng/mL) to units of activity (EU/ng) in a preparation.(TR82)
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