TrueCare Biomedix Cleanroom Wipe ISO Class 5 300 Count Bag 9 X 9 Inch Sterile Disposable (1136427_CS) 12/CS9 Inches by 9 Inches, white Sterile cleanroom wipers are sterile gamma irradiated to a 10 6 sterility assurance level They are constructed of an extremely low linting 68gsm 55 45 cellulose blend They are appropriate for critical areas up to and including ISO 5 cleanroom environments Maximum absorbencies of 20 25 mL