Spec-Wipes Spec-Wipe 3 Sterile Wiper. Combining top-notch and uncompromising quality with an affordable price the Spec-Wipes Spec-Wipe 3 Sterile Wiper 21914-777/ 21914-777 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: Sterile wiper for aseptic environments where bacteria particulate and extractable levels are critical concerns. Spec-Wipe 3 wiper is made of a highly absorbent 45percent polyester 55percent cellulose blend that is hydroentangled to minimize fiber and particle generation. Mechanically bonded without the use of chemicals and sterilized by gamma irradiation to a Sterility Assurance Level of 10 6 in accordance with ANSI/ISO/AAMI guidelines. Specifications for Spec-Wipes Spec-Wipe 3 Sterile Wiper 21914-777 : Dimensions cm (in.): 30.5 x 30.5 (12 x 12) Unit: Case of 500 Particle Generation (>=0.5 m) Biaxial Shake: =0.5 m) Fibers (>=100 m):