Description
The Test Tube with Joint & Stopper from Osmosis Scientific is precision engineered for laboratories that require secure connection and controlled sealing during experiments. Crafted from high-quality Boro glass, this tube combines excellent thermal stability and chemical resistance — essential for reliable lab performance.
The ground glass joint provides a seamless interface with other tapered glassware components, such as condensers, adapters, funnels, or reaction heads. This ensures a tight, leak-resistant fit for closed systems, atmospheric reaction setups, or solvent transfers. A matching ground glass stopper is included to provide secure sealing when the joint is not in use, preventing contamination and evaporation.
Available in a range of common laboratory sizes, with diameter options from 12 mm to 38 mm and lengths from 100 mm to 200 mm, these tubes offer flexibility for various uses — from small reaction vessels to gas collection and handling tasks.
| Height × O.D. (mm) | Stopper Size (NS) | Pack of | SKU | Enquiry |
|---|---|---|---|---|
| 100 × 12 | 10/19 | 100 | TTJS-100×12-1019 | Enquire Now |
| 125 × 16 | 12/21 | 100 | TTJS-125×16-1221 | Enquire Now |
| 150 × 18 | 14/23 | 100 | TTJS-150×18-1423 | Enquire Now |
| 150 × 25 | 19/26 | 100 | TTJS-150×25-1926 | Enquire Now |
| 200 × 25 | 19/26 | 100 | TTJS-200×25-1926 | Enquire Now |
| 200 × 12 | 24/29 | 50 | TTJS-200×12-2429 | Enquire Now |
| 200 × 38 | 24/29 | 50 | TTJS-200×38-2429 | Enquire Now |
Frequently Asked Questions (FAQs)
A test tube with joint and stopper Boro Glass is used in distillation setups, controlled reactions, and sample preservation where airtight sealing is required. Osmosis Scientific supplies these tubes for research workflows.
Yes, Boro Glass test tubes with joint are compatible with standard laboratory glassware setups used in chemical testing and research. Osmosis Scientific offers jointed tubes for integration into workflows.
Yes — borosilicate glass tubes tolerate routine laboratory temperature changes and moderate heating.
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