Lenz-Laborglas Round Bottom Test Tube NS 14/23, Ø 18 mm × 150 mm (DURAN® Tubing, Without Stopper)

The Lenz-Laborglas round bottom test tube with NS 14/23 ground-joint socket (Ø 18 mm × 150 mm) is crafted from premium DURAN® borosilicate glass, offering excellent thermal and chemical resistance. Supplied without a stopper, this tube is ideal for laboratory applications where custom closures or adapters are used.

Key Features:

• Brand: Lenz-Laborglas
• Shape: Round bottom for uniform heating and efficient mixing
• Socket Size: NS 14/23 ground-joint for secure standard connections
• Dimensions: Ø 18 mm × 150 mm length
• Material: DURAN® tubing — premium borosilicate glass for high durability
• Closure: Without stopper (no closure included)
• Application: Suitable for heating, distillation, chemical reactions, and modular glass-joint setups

The Lenz-Laborglas NS 14/23 test tube blends precision workmanship, durable materials, and flexibility in closure design—making it a reliable choice for research, analytical, and industrial laboratory environments.

Frequently Asked Questions

1. What is the Lenz-Laborglas Round Bottom Test Tube NS 14/23, Ø 18 mm × 150 mm (DURAN® Tubing, Without Stopper) used for?

It is crafted from premium DURAN® borosilicate glass, offering excellent thermal and chemical resistance. Supplied without a stopper, this tube is ideal for laboratory applications where custom closures or adapters are used.

2. Is the Lenz-Laborglas Round Bottom Test Tube NS 14/23, Ø 18 mm × 150 mm (DURAN® Tubing, Without Stopper) suitable for heating, distillation, chemical reactions, and modular glass-joint setups?

Yes. It is designed for heating, distillation, chemical reactions, and modular glass-joint setups, and offers round bottom for uniform heating and efficient mixing and NS 14/23 ground-joint for secure standard connections to support this kind of work.

3. What shape and socket size does the Lenz-Laborglas Round Bottom Test Tube NS 14/23, Ø 18 mm × 150 mm (DURAN® Tubing, Without Stopper) have?

It has round bottom for uniform heating and efficient mixing, NS 14/23 ground-joint for secure standard connections and Ø 18 mm × 150 mm length, and is supplied under manufacturer part number 5700026.

4. What is the Lenz-Laborglas Round Bottom Test Tube NS 14/23, Ø 18 mm × 150 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. It also offers without stopper (no closure included).

5. How does the Lenz-Laborglas Round Bottom Test Tube NS 14/23, Ø 18 mm × 150 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 glass-joint setups, the Lenz-Laborglas model is the better choice, offering round bottom for uniform heating and efficient mixing, NS 14/23 ground-joint for secure standard connections and Ø 18 mm × 150 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 for uniform heating and efficient mixing and NS 14/23 ground-joint for secure standard connections help make it a strong fit for heating, distillation, chemical reactions, and modular glass-joint setups.