Nylon Membrane Filter Discs, 0.22um, 25mm, Plain White, Nonsterile, 100/Pk
GVS SKU: 1213768

Featuring a naturally hydrophilic nylon (PA6.6) membrane internally supported by an inert polyester web, this 0.22um, 25mm plain white membrane disc delivers even wet-out without wetting agents that can interfere with biological processes. The 0.22um pore size retains fine particulates and microorganisms during clarification and analytical sample preparation, while the polyester support provides dimensional strength and stability that prevents cracking, tearing, curling, and breaking during aggressive handling or use with automated equipment.

Key Nylon Membrane Characteristics

• Naturally hydrophilic: wets out evenly with water and aqueous solutions and does not require wetting agents that can interfere with analyses.
• Polyester-supported structure: an inert internal polyester web adds dimensional strength and stability to resist cracking, tearing, curling, and breaking.
• Low extractables: extractable level below 0.0015 mg/cm helps protect test results and sample integrity.
• Broad chemical compatibility: compatible with aqueous and alcoholic solvents, though not compatible with strong acids or bases.
• High porosity: porosity of 70/80% supports high diffusion and low flow resistance.

Key Construction Characteristics

• Membrane material: nylon (PA6.6) with an integral polyester support web.
• Format: 25mm diameter plain white disc with a 0.22um pore size.
• Thermal tolerance: heatable and autoclavable up to 180 degrees C (356 degrees F) and unaffected by steam sterilization.
• Sterility and pack: supplied nonsterile, 100 discs per pack.

This membrane maintains consistent flow rates and product uniformity for dependable, repeatable results. Its low-extractable, high-uniformity construction protects sample integrity across general filtration, analytical preparation, and microbiology workflows. The robust polyester-supported design withstands routine handling and automated processing without compromising membrane integrity.

Color

White

Diameter

25mm

Extractables

<0.0015 mg/cm

Grade

Plain

Grid (Yes/No)

No

Material

Nylon

Maximum Operating Temperature (°C)

180

Membrane Color

White

Pack Count

100

pH Range

Not compatible with strong acids or bases

Pore Size (µm)

0.22

Sterility

Nonsterile

Sterilization

Autoclavable up to 180 C (356 F)

Support Material

Polyester

Wettability

Hydrophilic

• Sample Clarification Removes fine particulates from aqueous and alcoholic solutions to produce clean, analysis-ready samples.
• HPLC Sample Preparation Provides low-extractable filtration of mobile phases and samples to protect chromatography columns and detectors.
• Microbiology The 0.22um pore size retains microorganisms during clarification and bioburden-focused filtration workflows.
• Ion Chromatography Delivers clean, low-extractable filtrate suitable for trace-level ion analysis.
• General Laboratory Filtration Polyester-supported nylon handles routine aqueous and solvent filtration with durable, repeatable performance.
• Biological Assay Preparation Naturally hydrophilic wet-out without wetting agents supports preparation of biological solutions and assay media.