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, a general-purpose size for school chemistry benches. It can be used to mix solutions, heat small amounts of solids and liquids, and watch reactions such as gas evolution or precipitation. Orders for these tubes are quoted by Science Lab Supplies in Ambala, India, which serves schools, colleges, training institutes, tender contractors and distributors.
Specifications
Read the rows below for each fact about the 16 x 150 mm tube. In short, at 16 mm in diameter and 150 mm long it holds enough liquid for routine tests, with a straight rimless top, transparent walls for clear observation, and glass that is both chemical resistant and heat resistant.
| Specification | Value |
|---|---|
| SKU | SCL-CL-11515 |
| Item | Glass test tube |
| Diameter | 16 mm |
| Length | 150 mm |
| Top | Rimless |
| Material | Glass |
| Colour | Transparent |
| Chemical resistance | Chemical resistant |
| Heat resistance | 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 an 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 over a Beck Bunsen burner 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 the starch test, with iodine solution dispensed from a Glass Bottle, with Dropper (Amber).
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 itemises any accessories you add to the enquiry.
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 put 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. Write to the team on the contact page, or add the tubes and their accessories to the enquiry cart; procurement through a formal tender is described on the lab tender page.
Frequently Asked Questions
Is the 16 x 150 mm tube suitable for gas tests?
Yes. Its length leaves space above the liquid for a burning splint or other test at the mouth, and the heat-resistant glass allows gentle warming of the contents during the experiment.
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?
The supplier is Science Lab Supplies of Ambala, India. Institutions and resellers get direct quotations and can combine this tube with racks, holders and other glassware in the same order.
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, transparent and heat resistant.
Related Test Tubes and Accessories
Two or three test tube sizes, plus racks, holders, stoppers and brushes, let a chemistry bench handle spot tests, heating and gas work. 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) — 12 x 100 mm rimless tube for spot tests with a few drops of reagent.
- Test Piece (18 x 180 mm) — 18 x 180 mm rimless transparent glass tube, chemical and heat resistant.
- Test Piece (25 x 200 mm) — 25 x 200 mm rimless glass tube, the widest of these four sizes.
- Stand for Cylinders (Test Tube Rack) — holds 12 tubes upright, with end-plate handles and an autoclavable design.
- Rubber Stoppers of Various Diameters with Holes — chemical-resistant round stoppers with a hole, 11 to 15 mm bottom diameter.
- Test Tube Holder with Handle — spring-steel clamp on a hardwood handle, for 12–25 mm tubes.
- Test Tube Brush lab — nylon-bristle brush, 200 mm long with a 19 mm brush diameter.
Browse the full Chemistry Lab range, the Lab Glassware range, or all school lab equipment.
Last updated: 9 October 2026
