Lenz-Laborglas Round Bottom Test Tube NS 14/23 Ø 18 mm × 180 mm, DURAN® Tubing, PE Stopper

The Lenz-Laborglas round bottom test tube with NS 14/23 socket (Ø 18 mm × 180 mm) is constructed from premium DURAN® borosilicate glass, offering excellent thermal and chemical resistance. Supplied with a polyethylene (PE) stopper, this test tube is ideal for laboratory workflows requiring reliable sealing—such as heating, mixing, and reaction applications.

Key Features:

• Brand: Lenz-Laborglas
• Shape: Round bottom for uniform heating and effective mixing
• Socket Size: NS 14/23 ground joint for secure compatibility with standard glassware
• Dimensions: Ø 18 mm × 180 mm length
• Material: DURAN® tubing – high-performance borosilicate glass known for durability and chemical resistance
• Closure: PE (polyethylene) stopper included for tight and safe sealing
• Application: Suitable for heating, distillation, chemical reactions, and general laboratory glassware use

The Lenz-Laborglas NS 14/23 test tube delivers precision craftsmanship, durable materials, and a reliable sealing solution—making it a dependable choice for research, analytical, and educational laboratory environments.

Frequently Asked Questions

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

It is constructed from premium DURAN® borosilicate glass, offering excellent thermal and chemical resistance. Supplied with a polyethylene (PE) stopper, this test tube is ideal for laboratory workflows requiring reliable sealing, such as heating, mixing, and reaction applications.

2. Is this product suitable for heating, distillation, chemical reactions, and general laboratory glassware use?

Yes. It is designed for heating, distillation, chemical reactions, and general laboratory glassware use, and offers round bottom for uniform heating and effective mixing and NS 14/23 ground joint for secure compatibility with standard glassware to support this kind of work.

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

It has round bottom for uniform heating and effective mixing, NS 14/23 ground joint for secure compatibility with standard glassware 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 known for durability and chemical resistance. It also offers PE (polyethylene) stopper included for tight and safe sealing.