Description
The Test Tube with Interchangeable Stopper from Osmosis Scientific is designed for laboratory workflows that require secure containment and compatibility with ground glass fittings. Manufactured from durable borosilicate glass, these tubes offer excellent resistance to chemical exposure and thermal variation commonly encountered in laboratory environments.
Each tube is supplied with a precision interchangeable ground glass stopper, allowing reliable sealing during sample storage, reaction processes, or culture handling. The standardized stopper sizes ensure compatibility with laboratory assemblies and minimize contamination or evaporation.
Available in multiple configurations ranging from 100 × 12 mm to 200 × 38 mm, these tubes support a wide range of laboratory applications. Depending on outer diameter, tubes are supplied in pack sizes of either 100 or 50 pieces.
| Height × O.D. (mm) | Stopper Size | Pack of | SKU | Enquiry |
|---|---|---|---|---|
| 100 × 12 | 10/19 | 100 | TTIS-100×12-10_19 | Enquire Now |
| 125 × 15 | 12/21 | 100 | TTIS-125×15-12_21 | Enquire Now |
| 150 × 18 | 14/23 | 100 | TTIS-150×18-14_23 | Enquire Now |
| 150 × 25 | 19/26 | 100 | TTIS-150×25-19_26 | Enquire Now |
| 200 × 25 | 19/26 | 100 | TTIS-200×25-19_26 | Enquire Now |
| 200 × 32 | 24/29 | 50 | TTIS-200×32-24_29 | Enquire Now |
| 200 × 38 | 24/29 | 50 | TTIS-200×38-24_29 | Enquire Now |
Frequently Asked Questions (FAQs)
These are standard taper joint codes where the first number is the outer diameter in millimetres at the widest part of the joint, and the second is the length of the ground section in millimetres.
Borosilicate 3.3 glass provides high chemical resistance and thermal shock resistance, allowing repeated heating, cooling, and autoclaving without cracking.
Yes, they are designed as thick‑walled, mechanically strong tubes that can be cleaned and autoclaved repeatedly if inspected for chips or cracks before each use.
Stoppers and joints should be kept clean, lightly greased if recommended, and stored so the ground surfaces do not chip; matching joint sizes must always be paired to maintain a reliable seal.
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