membrane filter for endpoint

Method 9132: Total Coliform: Membrane-Filter Technique, part of

A predetermined amount of sample is filtered through a membrane filter when titrated to the phenolphthalein end point, pH 8.3, using 0.02 N.

Millipore® Filter Membranes - Sigma-Aldrich

Membrane filters, produced by precipitation or stretching of polymeric materials, are used for a variety of applications (e.g. filtration, air particle 

Alyza IQ SensorNet Filter Case and Filter Membrane | ysi.com

Rectangle filter membrane module with premounted membrane for Alyza IQ SensorNet. The FM/PC is a 45-micron filter membrane module that has been designed to be ...

What is a Membrane Filter and How Does It Work?

Apr 11, 2019 Membrane filters act as a barrier to separate contaminants from water, or they remove the particles contaminating the water.

Scaling Considerations to Maximize the High-Area Advantage

May 18, 2017 Pleated membrane formats commonly are used to achieve that goal for sterilizing-grade filters operating in dead-end mode (also known as ...

Standard Methods for the Examination of Water and Wastewater

9222 B. Standard Total Coliform Membrane Filter Procedure titrated to the phenolphthalein end point, pH 8.3, using 0.02N NaOH and produce pH levels of 7.

Membrane filters and membrane-filtration processes for health care

Depth filters retain only a portion of particles in a particular size range and are generally not acceptable for use in health care. Membrane filters retain all 

What is membrane filtration? | Alfa Laval

Membrane filtration process is a physical separation method characterized by the ability to separate molecules of different sizes and characteristics.

Filtration for the Bioprocessing Industry - ASME

May 1, 2017 membrane retention size limit is about ... integrity testing of membrane filters, a ... the end point for the process.

Membrane Filtration: Choosing the Correct Type of Filter - Cytiva

A hydrophobic membrane, such as polytetrafluoroethylene (PTFE) will resist any aqueous sample, creating back pressure. Although it is sometimes possible to 

Innovative Membrane Filtration Technologies for Upstream and

Overview of Main Attributes for Membrane Filters Used in Bioprocessing. equipment tends to become more significant as a process approaches its endpoint.

Membrane Filter Sample Packs - Sterlitech

Hydrophilic membrane filters are typically used with water and aqueous solutions. They can also be used with compatible non-aqueous fluids. Hydrophilic membrane 

Membrane filtration in the study of antimicrobial drugs

SYNOPSis A membrane filtration apparatus of the type employed in water bacteriology was used in the assessment of some antimicrobial drugs.

Filtration Membrane Discs - Fisher Scientific

The non-sterile membrane filters are made of cellulose nitrate (cellulose mixed ester), cellulose acetate or regenerated cellulose. They can be used for colony 

Membrane Filters | Sartorius

The main application of these membrane filters is the filtration of air, gases or chemicals. Unlike other (hydrophilic) filter types, they are not wetted by air