Whatman offer a range of sterile mixed Cellulose Ester membranes that are available folded in dispenser boxes compatible with most membrane dispensing systems (STL) or as single sterile packs (ST). STL membranes are widely used in food, beverage, pharmaceutical and cosmetic analysis and membrane filtration is excellent for the determination and enumeration of microbial contaminants.

• Economical
• Specifically for aqueous solutions
• Hydrophilic, for use up to 125ºC
• 'STL' version in dispenser boxes with 100 membrane filters for easy removal and safe handling with the Membrane-Butler

STL - Sterile: for use with Whatman Membrane-Butler

ST - Single sterile packed