top of page

Sterile CN Membrane (Gridded)

​◆ Key Features:

​

​Size: 37mm、47mm
Sterile: Gamma
Pore size: 0.22µm, 0.45µm
Packaging: Available pre-sterilized, individually packed

◆ Features

​​

  • Validated by Bacterial Challenge Test with Serratia marcescens (ATCC 14756)

  • ​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

  • Coliform & Bacterial Enumeration: Standard membrane filtration method for drinking water, wastewater, and environmental monitoring.

  • Yeast & Mold Detection: High-contrast black membranes for optimal visibility of translucent fungi and yeast colonies.

2. Food, Beverage & Pharmaceutical QC

  • Beverage Quality Control: Microbial testing in soft drinks, beer, wine, and bottled water.

  • Bioburden & Sterility Testing: Retention and colony counting of bioburden in pharmaceutical and cosmetic raw materials.​

bottom of page