Whatman regenerated cellulose membrane filters are made of pure cellulose, without wetting agents. Properties and advantages: spontaneously wetting, very wet-strength high chemical resistance, suitable for aqueous and organic media hydrophilic mechanically stable with low protein binding can be used up to 180 ° C Low extractable levels to minimize sample contamination with all procedures sterilizable pore sizes from 0.2μm to 1μm Here you can find the certificate: https://www.cytivalifesciences.com/en/de/support/quality/certificatesMeer tonenMinder tonen