ISPE Glossary of Pharmaceutical and Biotechnology Terminology

Print this page         
Find Definition by Term and/or Language
Term Language (Optional)
Browse All Terms
Beginning With By Language
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z :: All English
Deutsch
Francais

Membrane

A barrier, usually thin, that permits the passage only of particles up to a certain size or of special nature.

Publication Source: ISPE Baseline® Guide, Vol. 4: Water and Steam Systems (Second Edition)

Publication Date: 2011

Membrane

A barrier, usually thin, that only permits the passage of particles of a certain size or special nature. Filtration membranes are thin polymer films that are permeable to water and other fluids:

1. Microporous membrane filters have measurable pore structures that physically remove particles or microorganisms larger than pore size.

2. Ultrafiltration membranes (sometimes called molecular sieves) also remove molecules larger than a specified molecular weight.

3. Reverse osmosis membranes are permeable to water molecules and very little else, rejecting even dissolved ions and endotoxins in water.

Do you have a term that should be included in the glossary?
Submit a term for review

My ISPE

  • Click to go to My Communities of Practice
  • Click to go to My Affiliate or Chapter
  • Click to go to My Profile
Click to go to the Member Gift