Standard membranes for many laboratory applications including filter sterilising biological fluids, microbiology, contamination analysis and air monitoring. Mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate.

• High porosity provides superior flow rate
• High protein binding can be blocked by pretreatment or utilised in applications
• High purity - free of Triton
• Rapid wetting time, <3 seconds to wet a 47 mm diameter disc with aqueous 1% methylene blue

These filters withstand autoclaving temperatures up to 130 °C without adversely affecting bubble point, flow rate or microbiological recovery.