Schott Duran laboratory glassware comprises in the main following items:

• Beakers, low form (5–10,000 ml) and high form (50–3,000 ml) and various other types
• Bell jars with knob or neck bore (three sizes in each)
• Burettes, class B, with straight standard ground stopcock (10–100 ml)
• Burettes, class AS, with straight standard ground stopcock, Schellbach stripe and main graduations all round tube (10–50 ml)
• Crystallizing dishes (20–3,500 ml) with or without pouring lip
• Cylinders with knobbed lid (six sizes)
• Cylinders with round foot (five sizes)
• Desiccators
• Distillation flasks (100–1,000 ml)
• Evaporating dishes (15–2,500 ml)
• Engler flasks (100, 125 and 150 ml), also with standard ground joint (125 ml)
• Erlenmeyer flasks, narrow neck (25–5,000 ml), wide neck (25–10,000 ml) or with DIN thread (100–1,000 ml)
• Flat bottom flasks, narrow neck (50–10,000 ml) and wide neck (50–2,000 ml)
• Funnels with short stem (Ø 30–300 mm), also in soda-lime glass
• Glass ceramic laboratory protection plates (three sizes) with quadrupods or chrome-nickel steel holders
• Jars of various sizes and types
• Mixing cylinders with hexagonal foot, graduated, standard ground and plastic stoppers (10–2,000 ml)
• Measuring cylinders with hexagonal foot and graduated (5–2,000 ml)
• Measuring cylinders, low shape, with hexagonal foot (10–2,000 ml)
• Measuring pipettes, class B and AS, soda-lime glass for full and partial outflow or alternatively both (0.1–25 ml)
• Microburettes, class AS, with straight standard ground stopcock, Schellbach stripe and main graduations all round tube, waiting time: 30 sec. (1–5 ml)
• Multi-purpose-cylinders with round base (ten sizes)
• Museum jars with glass plate (seven sizes)
• Organ storage jars (75, 100 and 150 ml)
• Petri dishes in different types and sizes
• Powder funnels with short, wide stem (Ø 50–200 mm), also in soda-lime glass
• Round bottom flasks, with narrow and wide neck (50–20,000 ml)
• Sedimentation cone (500 ml)
• Sedimentation cone, Imhoff type, with or without stopcock (1,000 ml)
• Specimen jars (five sizes)
• Spirit lamp, soda-lime glass (100 ml)
• Test tubes (three different versions) DURAN test tubes with and without beaded rim (14 sizes)
• Watch glass dishes (40–250 ml), also soda-lime glass
• Weighing bottles with cover, flat and tall shape (four sizes in each)

Low form Beakers and High form Beakers

The difference between Duran centrifuge tubes and other types of tubes is their wall thickness and their sturdy design. They have to withstand the high loads generated in laboratory centrifuges. The mixture to be separated rotates at high speed around an axis in the centrifuge tube. This causes the heavier particles to fly faster and further away from the axis than the lighter ones. This results in separation.

These tubes are approved to DIN 58 970 (Part 2) for a maximum relative centrifugal acceleration of 4000 and filling in line with their capacity with contents having a maximum density of 1.2 g/ml.

• Fernbach flasks Kolle flasks Roux flasks
• Penicillin flasks

The difference is the shape.

Typical uses for Schott Erlenmeyer flasks include boiling and swirling. They are also used as components in apparatus. Their shape makes them ideal for mixing and storing liquids.

An advantage of the conical shape is that there is little tendency for precipitates to stick to the inside surface as they slide down the wall with the rest of the contents. Duran Erlenmeyer flasks are also used as culture flasks.

Filtering flasks are used for drawing off liquids and vacuum filtration. Duran filtering flasks are available in both conical and cylindrical form. To ensure suitability for use under vacuum they have an appropriate wall thickness. DIN 12 476 prescribes an appropriate pressure test to ensure that items are suitable for use under vacuum. All Schott filtering flasks are suitable for use under vacuum.

Duran filtering flasks with plastic hose connections and plastic tubulatures provide protection and safety for laboratory workers and the laboratory. Their design makes it easier to fit and remove the vacuum tubing.