Tygon S3™ E-3603 phthalate-free standard laboratory tubing combines the high performance standards customers demand with eco-friendly design. It is non-contaminating and resists most inorganic chemicals. Sterilize through conventional autoclave methods (steam 30 minutes at 15 psi, 121°C) and ethylene oxide. Material complies with FDA NSF 3-A and meets USP Class VI.