
Sterile CN Membrane (Gridded)
◆ Key Features:
Size: 37mm、47mm
Sterile: Gamma
Pore size: 0.22µm, 0.45µm
Packaging: Available pre-sterilized, individually packed
◆ Features
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Validated by Bacterial Challenge Test with Serratia marcescens (ATCC 14756)
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High Microorganism Recovery: Optimized structure ensures high bacterial retention and optimal recovery rates.Individually Sealed & Sterile: Individually packaged and sterilized (Gamma) to streamline lab workflow and prevent secondary contamination.
◆ Sterile Cellulose Nitrate (CN) ( Gridded )
Our Sterile Gridded Cellulose Nitrate (CN) Microporous Membrane is specifically
designed for microbiological detection and liquid sample enumeration. Manufactured
from high-purity cellulose nitrate cellulose esters, it features pre-printed gridlines to
facilitate accurate, quick colony counting without inhibiting bacterial growth or causing
toxicity.
Each membrane is individually packed and sterilized (Gamma irradiation) to eliminate
risk of cross-contamination, ensuring full compliance with international microbiological
testing standards.
◆ Technical Specifications
◆ Typical Applications
1. Microbiological Water & Environmental Analysis
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Coliform & Bacterial Enumeration: Standard membrane filtration method for drinking water, wastewater, and environmental monitoring.
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Yeast & Mold Detection: High-contrast black membranes for optimal visibility of translucent fungi and yeast colonies.
2. Food, Beverage & Pharmaceutical QC
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Beverage Quality Control: Microbial testing in soft drinks, beer, wine, and bottled water.
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Bioburden & Sterility Testing: Retention and colony counting of bioburden in pharmaceutical and cosmetic raw materials.

