DURAN® Original GL laboratory bottles have become the gold standard of multifunctional laboratory bottles since their introduction in 1972. The protect safety-coated version of the bottles combining the best of both worlds: virtually inert USP/EP Type I borosilicate glass 3.3 glass on the inside and a protective safety plastic layer on the outside. The bottles are moulded from high-purity, clear, glass that is then coated with a clear PU plastic coating to reduce the hazards of broken glass and liquid splashes in the event of breakage. A combination of high-performance materials and robust ISO 4796-1 design provides a long working life. The bottles feature an easy-to-read graduated volume scale, and marking field in permanent white enamel. Permanent Retrace Code on each bottle for manufacturing lot traceability. The protect safety coating meets the requirements of ASTM E1522, and is fully autoclavable at 121 or 134°C.

• Plastic safety coated
• With thread DIN 168-1
• Manufactured from DURAN® borosilicate glass 3.3. DURAN® is a neutral glass, classified as a Glass Type I according to USP 660>, EP (3.2.1) and JP 7.01>, and meets ASTM E438, Type I, Class A requirements
• The external polymer coating provides scratch, leak* and splinter* protection (* only applies to bottles 2000 ml and less)
• Highly resistance, long service-life coating
• Standardised GL-thread and matching cap system for particularly tight sealing and simple, clean pouring out
• UV protection up to approx. 380 nm due to external coating
• Easy-to-read scale with graduation marks to estimate the content
• Fired-on, highly durable white ceramic print
• Sizes 10 and 25mL with specially shaped glass edge for improved pouring out whereby an additional plastic pouring ring is not required