Bildnmussel
New member
I have USP oil from Researchlabsupply Co. and am wondering if just warming it to disolve my powder and filtering with a .45 whatman is good enough or if it is necessarry to apply more heat to sterilize oil and/or it is necessary to filter with a .20? I have read so much dam conflicting filtering and sterilization info I am having a hard time choosing but most of them don't refer to USP filtered oil either. Thanks for the help!