Lenz-Laborglas Round Bottom Test Tube NS 14/23 Ø 18 mm × 180 mm (DURAN® Tubing, Without Stopper)

The Lenz-Laborglas round bottom test tube with NS 14/23 socket (Ø 18 mm × 180 mm) is crafted from high-quality DURAN® borosilicate glass, known for its excellent thermal and chemical resistance. Supplied without a stopper, this test tube is ideal for laboratory setups requiring customised closures or flexible integration with glass-joint systems.

Key Features:

• Brand: Lenz-Laborglas
• Shape: Round bottom for even heating and effective mixing
• Socket Size: NS 14/23 ground-joint for compatibility with standard lab apparatus
• Dimensions: Ø 18 mm × 180 mm length
• Material: DURAN® tubing – high-performance borosilicate glass offering durability and resistance
• Closure: Supplied 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 delivers precision manufacturing, long-term durability, and flexible closure options—making it a trusted choice for scientific, educational, and industrial laboratory environments.

Frequently Asked Questions

1. What is the Lenz-Laborglas Round Bottom Test Tube NS 14/23 Ø 18 mm × 180 mm used for?

It is crafted from high-quality DURAN® borosilicate glass, known for its excellent thermal and chemical resistance. Supplied without a stopper, this test tube is ideal for laboratory setups requiring customised closures or flexible integration with glass-joint systems.

2. Is this product 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 even heating and effective mixing and NS 14/23 ground-joint for compatibility with standard lab apparatus to support this kind of work.

3. What shape and socket size does this product have?

It has round bottom for even heating and effective mixing, NS 14/23 ground-joint for compatibility with standard lab apparatus and Ø 18 mm × 180 mm length.

4. What is this product made from and what features does it include?

It is made from DURAN® tubing – high-performance borosilicate glass offering durability and resistance. It also offers supplied without stopper (no closure included).