TheProdigyCode
New Member
May i ask whats the point of filtering the WFI after you add BA? WFI is sterile, non-pyrogenic, and highly purified water,imo there is no need for filtration,just transfer it to a sterile vial and add BA is more logical. I dont say that filtration can harm but its absolutely an overkill.What you want is water for injection (WFI) not sterile water. Add 1% BA to it and then filter .22um or .2um into sterile vials. Not .45 mentioned by the other poster. If you're in the us it should be relatively easy to get.
Sterile water contains pyrogens which cannot be filtered out.
