Material: DURAN ® glass, PU-coated. Autoclavable: yes. Acc. to 4796-1. The plastic casing protects against mechanical damage (scratch protection), minimises loss of fluid in the event of glass breakage (leak and splash protection), prevents scattering of glass shards and provides light protection up to a wavelength of 380 nm. With retrace code. Temperature stability -30 to +135 °C. Microwave safe. Note: Do not expose DURAN ® Protect bottles to naked flames or direct heat. Avoid continuous thermal exposure for longer than 30 min. DURAN ® Protect bottles can be cleaned in industrial dishwashers (average resistance: 30 cycles at max. 95 °C). Autoclavable at 121 °C and 1.1 bar for 20 minutes (average resistance: 30 cycles). Screw top bottle DURAN ® Protect Clear glass with pouring ring and PP screw cap Delivery incl. PP pouring ring and screw cap.