Sartorius Hydrophobic edged Sterile Cellulose Nitrate and Acetate Membrane Filters

Description

• Hydrophobic edge membranes are used mainly for colony count and sterility testing of solutions containing substances with antibiotic characteristics
• The hydrophobic edge avoids the penetration of any growth-inhibitory substance into the membrane clamp zone wherefrom it could not be rinsed out and the substance could inhibit microbial growth during incubation
• outstanding retention rates for microorganisms 0.45μm are acc
• to ISO 7704 0.2μm are validated by BCT certified quality Individually, sterile packaged The membranes are available in three different materials: Cellulose nitrate (cellulose ester), a material which assures effective retention with high flow rates and optimum colony growth Cellulose acetate, a material which combines high flow rates and thermal stability with very low adsorption characteristics Regenerated Cellulose, a material which combines excellent chemical and thermal stability with very low adsorption characteristics