Test Tube with Side Arm (Product Code: SLE/CH/232) is a clear borosilicate glass 3.3 tube measuring 150x24mm, fitted with a side arm so that gas or vapour can leave through connected tubing while the mouth of the tube is stoppered. Teachers use it for small-scale gas preparation and collection, and as a compact vessel for suction filtration. It is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, as part of its borosilicate laboratory glassware in India for schools, colleges and overseas institutions.
| Parameter | Detail |
|---|---|
| Material | Borosilicate glass 3.3 |
| Colour | Clear |
| Dimensions | 150x24mm |
| Feature | With side arm for connecting tubing |
| Heat resistance | Heat resistant |
| Chemical resistance | Chemical resistant |
The side arm turns an ordinary tube into a small gas generator. With reactants in the tube and a stopper in the mouth, a length of tubing from the side arm carries the gas to a gas jar, an inverted tube over water, or a tube of limewater — a neat way to prepare hydrogen from a metal and dilute acid or carbon dioxide from marble chips. The same tube can serve as a miniature filter flask: connect the side arm to a filter pump, seat a small funnel in a stopper, and fine precipitates can be drawn dry quickly on the bench. Because the glass is borosilicate 3.3, it can also be warmed gently to speed up a reaction.
Clamp the tube to a retort stand instead of holding it when gas is being generated, and check that the delivery path is open before any heating. Wet the end of the rubber or silicone tubing and push it onto the side arm with a gentle twist rather than forcing it, which is the moment glass side arms are most often snapped. Clear, heat-resistant glassware of this kind is a practical choice for any chemistry lab glassware store in India that supports gas and filtration experiments.
Jain Scientific Equipments Private Limited manufactures this side arm test tube and trades as ScienceLab from Ambala in Haryana, supplying teaching and research laboratories with apparatus for practical science. The company profile gives an overview of the business.
Items that complete a gas-generation or filtration setup with this tube:
Explore more glassware and supports in the Chemistry Lab Equipment category.
What size is the tube?
It measures 150x24mm and is made from clear borosilicate glass 3.3.
Can it be heated over a burner?
Yes, the borosilicate glass is heat resistant. Heat gently and evenly, and never heat the tube with the mouth stoppered and the side arm blocked.
Is a stopper included?
A stopper is not listed as part of this item. Choose a rubber cork to suit the tube mouth, or ask us to match one for you.
Can it be used for vacuum filtration?
Yes, it works as a small filter flask with a filter pump. Inspect the glass for chips or cracks before applying suction.
How do I clean the side arm?
Rinse water through the side arm straight after use, then wash the main tube with a test tube brush and detergent and rinse with distilled water.
How are these tubes supplied?
Pack quantities are not listed here, so orders are quoted to your requirement for schools, colleges and distributors in India and international markets. Contact us for details.
Send your quantity through our contact page, or add the Test Tube with Side Arm to the enquiry cart with your other glassware.
Last updated: 24 September 2026