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- General laboratory consumables
- Occupational safety, Security
- Analytical measurement and testing
- Stirring, Shaking, Mixing
- Sample preparation
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Distillation, separation, filtration
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Distillation, synthesis
- Flasks with gound joint neck
- Components for reaction and distillation
- Flat ground flange reaction vessels
- KPG stirrer and bearings
- Dropping funnels
- Reflux condensers
- Distillation accessories
- Components for extraction
- Gas wash bottles
- Tubing adapters
- Standard ground stoppers
- Ground joints accessories
- Ground joints, attachable
- Stopcocks and valves
- Laboratory reactors
- Rotary evaporators
- Separating, centrifuging
- Filtration
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Distillation, synthesis
- Heating and cooling technology
- Liquid Handling
- Vacuum technology, Drying, Dry storage
- Optical instruments and microscopes
- Cleaning and sterilisation
- Environmental-, soil-, water-, food analysis
- Chromatography
- Cleanroom
Standard ground stoppers
Hollow glass stoppers, type C, borosilicate glass 3.3
The hexagonal LABSOLUTE® hollow glass stoppers with standard ground joint and pointed bottom are made of high-quality borosilicate glass 3.3 and are therefore extremely temperature-resistant up to 500 °C. The stoppers comply with DIN 12252 form C. They are resistant to cold lyes/alkaline solutions and strong acids with the exception of hydrofluoric acid and concentrated, hot phosphoric acid. The stoppers can be easily combined with all glass products that have a ground joint such as measuring flasks, Erlenmeyer flasks or round bottom flasks....
NS-Glass stoppers, hollow borosilicate glass 3.3
Manufactured from borosilicate glass 3.3 which is resistant to heat and almost all chemicals. They meet the highest quality standards according to DIN 12252. Lower closed end of stopper features a "drip-tip" to ensure adhered liquid is returned to the flask. Hexagonal flat head prevents the stopper from rolling and allows stopper to be stood on end preventing contamination of the ground surface....
