Featuring a 100% borosilicate glass microfiber depth medium, these 150mm binder-free filter discs deliver fine 1.6um nominal particle retention combined with fast flow and high particulate loading capacity. The hydrophilic, binder-free construction avoids extractables, making the discs well suited to gravimetric and analytical determinations where binder migration must be eliminated. The random fiber matrix traps particulate throughout the depth of the medium rather than at a single screen surface, providing reliable clarification of heavily loaded samples.
Key Glass Fiber Media Characteristics
- Naturally hydrophilic borosilicate glass microfiber that wets readily with aqueous samples.
- Nominal particle retention of 1.6um delivered through depth filtration, not absolute pore size.
- Binder-free composition designed for solvent filtration and gravimetric analysis to avoid binder extractables.
- High particulate loading capacity with fast flow, ideal for protecting downstream membranes as a prefilter.
- Biologically inert, autoclavable, and highly resistant to oxidizing agents and weak acids.
Key Construction Characteristics
- 150mm diameter circle format for use in standard filtration funnels and holders.
- Binder-free borosilicate glass microfiber throughout.
- Supplied nonsterile.
- Packaged 100 discs per pack.
The depth structure provides an outstanding impurity retention capacity combined with low filter resistance, supporting consistent results across large sample volumes. The binder-free composition maintains low background for gravimetric and analytical work, helping preserve sample integrity. These discs provide dependable, low-cost clarification whether used alone or as a prefilter ahead of a final membrane.
- Color
- White
- Diameter
- 150mm
- Grade
- DFAAH
- Material
- Glass Fiber (GF)
- Maximum Operating Temperature (°C)
- 500
- Mesh Format
- Circle
- Pack Count
- 100
- Particle Retention
- 1.6 um
- Pore Size (µm)
- 1.6
- Prefilter (Yes/No)
- Yes
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Prefiltration Extends the life of downstream final membranes by removing bulk particulate from heavily loaded samples.
- Gravimetric Analysis Binder-free borosilicate construction minimizes extractables for accurate weight-based determinations.
- Water and Air Pollution Monitoring Captures suspended particulate from effluent and airborne samples for environmental analysis.
- Protein and Cell Filtration Clarifies precipitated proteins, cells, and cell debris with high loading capacity.
- Foodstuff Analysis Provides fast, fine retention clarification of food and beverage sample matrices.
- Sample Clarification Offers low-cost depth filtration of algae, bacteria cultures, and turbid aqueous samples.