Polyester Membrane Discs, 10.0um, 25mm, Nonsterile, 100/Pk
GVS SKU: 1220827

Featuring a thin, translucent polyester track etched (PETE) film with precisely defined cylindrical pores, these 25mm membrane discs deliver accurate, reproducible surface capture at a 10.0um pore size. Naturally hydrophilic, the polyester film contains no wetting agents, plasticizers, or other extractables, so it wets out without pretreatment and keeps filtrates clean. The smooth, flat surface captures all particles larger than the controlled pore size on a single plane, making it well suited to general filtration, particle analysis, and microscopic visualization. This nonsterile membrane ships 100 discs per pack.

Key Polyester (PETE) Membrane Characteristics

• Naturally hydrophilic: wets out evenly without added surfactants, wetting agents, or plasticizers.
• Surface capture: precise, cylindrical track etched pores retain all particles larger than the rated pore size on the membrane surface.
• Broad chemical compatibility: polyester resists most commonly used solvents and chemicals except strong bases, exceeding the solvent resistance of polycarbonate.
• Low extractables: contains no plasticizers or other extractables, supporting clean, consistent results.
• Thermally stable: repeatedly autoclavable, with no damage observed under sustained exposure to 140 degrees C in air or steam.

Key Construction Characteristics

• Material: polyester (PETE) track etched film.
• Format: 25mm diameter membrane disc, not gridded.
• Pore size: 10.0um nominal.
• Sterility: nonsterile.
• Pack: 100 discs per pack.

The track etched structure provides one of the most precise pore size distributions available in a membrane filter, delivering reproducible separation and reliable sample integrity from disc to disc. Because particles collect on a smooth, flat plane, samples are easy to image and analyze. Solvent resistance and thermal stability keep performance consistent across demanding filtration workflows.

Color

White

Diameter

25mm

Grid (Yes/No)

No

Material

Polyester (PETE)

Maximum Operating Temperature (°C)

140

Pack Count

100

Pore Size (µm)

10

Sterility

Nonsterile

Wettability

Hydrophilic

• Particle Analysis and Microscopy The smooth, flat surface captures particles on a single plane for clear microscopic visualization and accurate particle sizing.
• General Filtration Precise 10.0um surface capture clarifies samples and removes larger particulates in routine laboratory filtration.
• Blood Assays Hydrophilic polyester film supports removal of red blood cells from plasma and related cellular work.
• Prefiltration The 10.0um rating protects finer downstream membranes by retaining coarse particulates upstream.
• Aggressive Solvent Filtration Broad chemical compatibility allows filtration of chemically aggressive solvents that would degrade polycarbonate.
• Flow Control in Assays Uniform cylindrical pores provide reproducible flow control of reagents moving through assays.