2） Product Overview

Grid membrane filters are supplied in three media types: MCE (Mixed Cellulose Ester), CA (Cellulose Acetate) and CN (Cellulose Nitrate). The standard diameter is 47 mm, with mainstream pore sizes of 0.22 μm and 0.45 μm.The clear printed grid lines boost the visibility of microbial colonies and enable precise colony counting in membrane filtration assays.All these membranes are inherently hydrophilic, delivering smooth flow of water and aqueous samples with minimal analyte loss. Both gamma-sterilized and non-sterile versions are offered to satisfy microbial detection and quality control demands for labs and industrial production lines.

3） Key Features

• Three membrane materials (MCE / CA / CN) for varied testing standards
• Distinct printed grid improves colony visibility and counting accuracy
• Hydrophilic media ensures smooth filtration of all water-based samples
• Standard specification: 47 mm diameter, 0.22 μm & 0.45 μm pore sizes; custom dimensions acceptable
• Two grades optional: gamma irradiated sterile and non-sterile, compatible with all common lab protocols
• Stable batch quality and evenly distributed pores to guarantee reproducible test data
• Perfect for microbiology experiments, environmental monitoring, food inspection and pharmaceutical quality control
• OEM & ODM support: customized packaging, private labels and bulk wholesale supply

4） Applications

• Microbiological testing: bacterial detection and colony enumeration
• Water quality monitoring: drinking water, surface water and wastewater analysis
• Quality control for food and beverage laboratories
• Pharmaceutical microbial limit testing and cleanroom aseptic monitoring
• Ambient air microbial sampling and environmental microbiology research
• Patch testing for particulate impurities in lubricating and hydraulic oils

5）Ordering Information