Cellulose Nitrate Membrane Disc Filter

Cellulose Nitrate Membrane Disc Filters are high-performance filtration products designed for accurate and efficient separation of particles, bacteria, and contaminants from liquids. These filters are widely used in laboratories, pharmaceuticals, microbiology, and water testing applications where purity and consistency are essential.

Due to their hydrophilic nature, absolute retention, and high flow rates, these membrane filters are ideal for aqueous solutions and critical filtration processes. They are highly preferred in international markets such as the USA, UK, Germany, and Australia for their reliability and compliance with global quality standards.

What is a Cellulose Nitrate Membrane Disc Filter?

A Cellulose Nitrate Membrane Disc Filter is a circular membrane filter made from cellulose nitrate material, specifically designed for microbiological and laboratory filtration. It provides high retention efficiency, ensuring that even the smallest particles and microorganisms are effectively captured.

These filters are biologically inert and non-fiber releasing, which means they do not interfere with the sample or release contaminants into the filtrate. This makes them suitable for sensitive testing and analytical procedures.

Where Are These Filters Used?

Cellulose Nitrate Membrane Disc Filters are used in a variety of industries and applications:

• Water Analysis: For detecting impurities and ensuring safe water quality
• Sterility Testing: Essential in pharmaceutical and laboratory environments
• Microbiology Testing: Used for bacterial retention and analysis
• Aqueous Solution Filtration: Ideal for water-based liquids
• Product and Water Microbiology: Ensures contamination-free testing

These filters play a critical role in maintaining accuracy and reliability in testing processes.

Why Are Cellulose Nitrate Membrane Disc Filters Used?

These filters are widely used due to their precision, efficiency, and compliance with international standards.

Main reasons include:

• Absolute retention of bacteria and particles
• High flow rates for faster filtration
• Hydrophilic membrane for smooth liquid passage
• Biologically inert material that does not react with samples
• Suitable for critical and sensitive applications

Their ability to deliver consistent results makes them a trusted choice worldwide.

Material and Construction

These filters are manufactured using Cellulose Nitrate membrane, known for its:

• Excellent compatibility with aqueous solutions
• Uniform pore structure
• Strong microbial retention capability

Available Specifications:

• Pore Sizes: 0.2µm, 0.45µm, 0.8µm, 1.2µm, 5µm
• Diameters: 13mm, 25mm, 47mm

Working Principle

Cellulose Nitrate Membrane Disc Filters operate on a mechanical filtration principle. The membrane contains microscopic pores that allow liquid to pass through while trapping particles, bacteria, and impurities based on their size.

For example:

• 0.2µm filters are used for sterilization and removal of bacteria
• 0.45µm filters are used for general filtration and clarification

This ensures accurate and reliable filtration results in every application.

Key Features

• Absolute retention for precise filtration
• Hydrophilic membrane suitable for aqueous solutions
• Non-media migrating structure
• High flow rates for faster processing
• Biologically inert and safe
• Autoclavable at 121°C for 30 minutes
• High resistance to pressure and temperature
• Non-fiber releasing as per USP standards

Benefits of Using Cellulose Nitrate Membrane Disc Filters

• Ensures high purity and contamination-free output
• Saves time with fast filtration speed
• Ideal for microbiology and laboratory use
• Durable under high temperature and pressure conditions
• Meets international quality and safety standards
• Provides consistent and reliable performance

Technical Specifications

Ordering Information