Lenz-Laborglas Round Bottom Test Tube, NS 14/23, Ø 16 mm × 100 mm, DURAN® Tubing, Without Stopper

The Lenz-Laborglas round bottom test tube with NS 14/23 socket (Ø 16 mm × 100 mm) is made from premium DURAN® borosilicate glass, offering excellent chemical and thermal resistance. Supplied without a stopper, this test tube is ideal for laboratory applications requiring customised closure or direct integration with other lab glassware.

Key Features:

• Brand: Lenz-Laborglas
• Shape: Round bottom — promotes uniform heating and effective mixing
• Socket Size: NS 14/23 ground joint for compatibility with standard lab equipment
• Dimensions: Ø 16 mm × 100 mm length
• Material: DURAN® tubing — premium borosilicate glass for high durability and resistance
• Closure: Without stopper (no closure included)
• Application: Suitable for heating, distillation, chemical reactions, and modular glassware setups

The Lenz-Laborglas NS 14/23 test tube combines robust construction, precise glassworking, and absence of pre-installed closures for maximum flexibility—making it a reliable component for research, analytical, and industrial laboratory workflows.

Frequently Asked Questions

1. What is the Lenz-Laborglas Round Bottom Test Tube, NS 14/23, Ø 16 mm × 100 mm, DURAN® Tubing, Without Stopper used for?

It is made from premium DURAN® borosilicate glass, offering excellent chemical and thermal resistance. Supplied without a stopper, this test tube is ideal for laboratory applications requiring customised closure or direct integration with other lab glassware.

2. Is the Lenz-Laborglas Round Bottom Test Tube, NS 14/23, Ø 16 mm × 100 mm, DURAN® Tubing, Without Stopper suitable for heating, distillation, chemical reactions, and modular glassware setups?

Yes. It is designed for heating, distillation, chemical reactions, and modular glassware setups, and offers round bottom, promotes uniform heating and effective mixing and NS 14/23 ground joint for compatibility with standard lab equipment to support this kind of work.

3. What shape and socket size does the Lenz-Laborglas Round Bottom Test Tube, NS 14/23, Ø 16 mm × 100 mm, DURAN® Tubing, Without Stopper have?

It has round bottom, promotes uniform heating and effective mixing, NS 14/23 ground joint for compatibility with standard lab equipment and Ø 16 mm × 100 mm length, and is supplied under manufacturer part number 5700007.

4. What is the Lenz-Laborglas Round Bottom Test Tube, NS 14/23, Ø 16 mm × 100 mm, DURAN® Tubing, Without Stopper made from and what features does it include?

It is made from DURAN® tubing, premium borosilicate glass for high durability and resistance. It also offers without stopper (no closure included).

5. How does the Lenz-Laborglas Round Bottom Test Tube, NS 14/23, Ø 16 mm × 100 mm, DURAN® Tubing, Without Stopper compare with the Thermo Nunc Test Tubes 12 mL PS Round Bottom 100 x 15 mm Sterile with PE Cap (Pack of 500) from Thermo Scientific?

For heating, distillation, chemical reactions, and modular glassware setups, the Lenz-Laborglas model is the better choice, offering round bottom, promotes uniform heating and effective mixing, NS 14/23 ground joint for compatibility with standard lab equipment and Ø 16 mm × 100 mm length. The Thermo Scientific model offers a capacity of 12 mL per tube as an alternative, while the Lenz-Laborglas model's round bottom, promotes uniform heating and effective mixing and NS 14/23 ground joint for compatibility with standard lab equipment help make it a strong fit for heating, distillation, chemical reactions, and modular glassware setups.