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Probe (18 x 180 mm)
Probe (18 x 180 mm) (Product Code: SCI-241/89) is a rimless borosilicate glass test tube of 18 x 180 mm, used for heating, reacting and collecting larger sample volumes than a small test tube holds in school and college laboratories. Its wider bore and extra length give room for gas-generation experiments, water-bath incubations and tests that need a delivery tube through a stopper. It is produced by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer of chemistry lab glassware in India, at its own factory in Ambala.
Specifications
| Parameter | Detail |
|---|---|
| Type | Edgeless (rimless) glass test tube |
| Diameter x length | 18 x 180 mm |
| Material | Borosilicate glass, transparent |
| Properties | Chemical resistant; heat resistant |
| Product code | SCI-241/89 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is an 18 x 180 mm Test Tube Used For?
The larger tube suits experiments where a small tube would overflow or boil over: heating solids to decompose them and collecting the gas through a delivery tube, preparing small amounts of a gas for testing, or holding enzyme and digestion mixtures in a water bath. Teachers also use it for demonstrations, where the bigger volume is easier for a class to see.
Because it is longer, clamp it to a retort stand or hold it near the mouth with a test tube holder when heating, and check that your racks and holders take an 18 mm tube. After use, scrub with a tube brush, rinse with distilled water and dry it inverted.
What to Specify When Ordering
- Tube size: 18 x 180 mm under this code; Probe (16x150mm) is the smaller option
- Number of tubes per class set, allowing for breakage
- Racks and holders that fit an 18 mm tube
- Stoppers or delivery tubes, if gas experiments are planned
OEM Manufacturer
ScienceLab is the trading name of Jain Scientific Equipments Private Limited, the OEM that manufactures this test tube at its own licensed factory in Saha, Ambala, Haryana. Buying from the manufacturer gives schools, colleges, dealers and importers a single point of contact for the quotation, the product code and any later replacement tubes. More details are on the ScienceLab profile.
Related Laboratory Equipment
Items that pair with larger test tubes:
- Test Tube Holder — grips the tube during heating
- Test Tube Rack, Polypropylene — storage and drying between classes
- Test Tube with Rim — a rimmed alternative from the same series
- Test Tube 25 x 200mm — a still larger tube for boiling-tube tasks
Browse the Laboratory Equipment category for the complete range.
Frequently Asked Questions
What size is Probe (18 x 180 mm)?
Probe (18 x 180 mm) is a rimless test tube 18 mm in diameter and 180 mm long, made of transparent borosilicate glass. Despite the catalogue name “Probe”, it is used as a laboratory test tube.
When should I choose Probe (18 x 180 mm) over a smaller test tube?
Choose Probe (18 x 180 mm) when a test needs more volume or headspace, such as gas generation, heating solids with a delivery tube, or water-bath incubations where a smaller tube might boil over or be too cramped.
Is Probe (18 x 180 mm) heat and chemical resistant?
Yes, Probe (18 x 180 mm) is made of borosilicate glass listed as heat resistant and chemical resistant, so it can be heated in a flame or water bath and used with common laboratory acids and alkalis.
Who manufactures Probe (18 x 180 mm)?
Probe (18 x 180 mm) is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM with its own factory in Ambala, Haryana, India, and is supplied factory-direct to institutions and trade buyers.
Does Probe (18 x 180 mm) fit a standard test tube rack?
Rack holes vary, so check that yours accept an 18 mm tube before ordering Probe (18 x 180 mm). If you are unsure, ask us through the contact page and we can suggest a matching rack.
Can Probe (18 x 180 mm) be ordered in bulk or for export?
Yes, Probe (18 x 180 mm) can be quoted in class-set and bulk quantities for buyers in India and international markets. Share how many tubes you need and where they are going, and the manufacturer will send a quotation.
Request a Quote
Request a quotation for Probe (18 x 180 mm) through the contact page, or add the tubes, racks and holders you need to the enquiry cart. The manufacturer quotes every order directly.
Last updated: 24 September 2026
