Test Piece
Product Code : SCL-CL-11515
Test Piece (SKU SCL-CL-11515) is a 16 x 150 mm rimless test tube made of clear glass, the general-purpose size found on most school chemistry benches. Students use it to mix solutions, heat small amounts of solids and liquids, and watch reactions such as gas evolution or precipitation. Schools, colleges, training institutes, tender contractors and distributors can source it from Science Lab Supplies, which supplies laboratory glassware from Ambala, India.
Specifications
At 16 mm in diameter and 150 mm long, this tube holds enough liquid for most routine tests while staying easy to hold and heat. It has a straight rimless top, transparent walls for clear observation, and glass that is listed as both chemical resistant and heat resistant.
| Parameter | Value |
|---|---|
| SKU | SCL-CL-11515 |
| Item | Rimless glass test tube |
| Dimensions | 16 x 150 mm |
| Colour | Transparent |
| Properties | Chemical resistant, heat resistant |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the 16 x 150 mm Test Tube
The 16 x 150 mm test tube is the everyday reaction vessel of school and college chemistry. It is used for heating substances, testing gases, preparing precipitates and comparing reaction rates in CBSE/NCERT Class 7–12 science and chemistry, B.Sc. practicals and technician training.
- Class 10 chemistry: reactions of metals with acids and the test for hydrogen gas at the mouth of the tube.
- Class 10: heating ferrous sulphate or lead nitrate crystals to observe decomposition, under supervision.
- Class 11–12 and B.Sc.: wet tests in salt analysis and tests for functional groups in organic compounds.
- Biology practicals: food tests such as starch and protein tests.
Standard Scope of Supply
Each item is one rimless transparent glass test tube of 16 x 150 mm, as specified above. Test tube racks, holders and stoppers are ordered separately; the quotation shows how many tubes make up a pack and lists any accessories you add.
Packing, MOQ and Lead Time
Order a pack to top up breakages or a larger lot for a new chemistry lab: Science Lab Supplies quotes whatever quantity you specify. The quotation confirms packing, delivery time and price, and other test tube sizes or accessories can be listed on it as well.
Under its Importer-Exporter Code, Science Lab Supplies is able to ship to buyers in the Philippines, Nepal, Bangladesh, Zambia, Rwanda and South Africa. The contact page and the enquiry cart both reach the sales team, and the lab tender page explains how tender enquiries are handled.
Frequently Asked Questions
Is 16 x 150 mm the usual school test tube size?
It is one of the most widely used general-purpose sizes in school laboratories, large enough for heating and gas tests yet small enough to use little reagent.
How should students heat this test tube?
Fill it no more than about one third, hold it with a test tube holder at an angle, move it gently in the flame and never point the open end at anyone.
Who is the supplier of this Test Piece?
This test tube is supplied by Science Lab Supplies of Ambala, India. Institutions and resellers get direct quotations and can combine it with racks, holders and other glassware.
Why is the item called Test Piece?
Test Piece is the catalogue name used for this product. It is a standard rimless glass laboratory test tube of 16 x 150 mm.
Related Test Tubes and Accessories
Chemistry teachers normally keep two or three test tube sizes on hand, plus racks and stoppers for storing and closing them. The Chemistry Lab items below go together with the 16 x 150 mm tube and can be quoted with it in one enquiry.
- Test Piece (12 x 100 mm) — smaller tube for spot tests.
- Test Piece (18 x 180 mm) — larger tube for bigger volumes.
- Stand for Cylinders (Test Tube Rack) — keeps tubes upright and organised.
- Rubber Stoppers of Various Diameters with Holes — for fitting delivery tubes in gas experiments.
Browse the full Chemistry Lab range or all school lab equipment.
Last updated: 25 September 2026
.jpg)
.jpg)