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.

• PU plastic safety coated, with thread DIN 168-1, graduated
• The external polyurethane PU polymer coating provides scratch protection
• 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

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 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 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.

Safe storage and shipping of bulk, APIs, high-potency active pharmaceutical ingredients (HPAPIs) powders.