DURAN® brown laboratory bottle 25 ml GL25 with screw cap, 10 pcs

DURAN® Original GL 25 laboratory bottle, brown, with screw cap and pouring ring, PP, blue, 25 ml DURAN® Original GL laboratory bottles have been the gold standard for multifunctional laboratory bottles since their introduction in 1972. The bottles are formed from high-purity, clear USP/EP Type I borosilicate glass 3.3, known for its excellent thermal behaviour and high resistance to chemical influences. A combination of high-performance materials and a robust ISO 4796-1 design ensures a long service life. The use of a fused, external brown coloration protects light-sensitive materials from the effects of photodegradation. Protection against ultraviolet light complies with international USP/EP standards and is maintained throughout the entire service life of the bottle. The brown-coloured bottles feature an easy-to-read graduated volume scale and a permanently white enamel labelling field. The permanently printed batch identifier (“Retrace Code”) on each bottle guarantees complete traceability of manufacturing. DURAN® Original brown laboratory bottles are supplied with or without the well-known blue polypropylene cap and drip-free pouring ring for use up to 140 °C. All components are fully autoclavable at 121 or 134 °C. Special properties and benefits: Standardised GL thread and matched closure systems for an especially tight seal and easy, clean pouring UV protection up to approximately 500 nm wavelength through external colour application The purely external brown coloration ensures unchanged DURAN® properties inside the bottle Long shelf life and good chemical resistance of the brown coloration Complete with blue screw cap (PP, integrated lip seal) and pouring ring (PP) for drip-free removal and clean, safe working Easy-to-read scale with graduation marks for measuring the contents Baked-in and therefore permanently durable white print The 10 and 25 ml sizes have a specially shaped glass rim for improved pouring, eliminating the need for an additional plastic pouring ring Application: Preparation of light-sensitive materials, storage of light-sensitive materials, transport and shipping of light-sensitive materials, autoclaving of media and reagents, culture vessel