Simax Heavy Duty Test Tubes with Rim – 150 × 16mm, 1.8mm Wall (Box of 10)

The Simax Heavy Duty Rimmed Test Tubes (150 × 16mm) are manufactured from premium 3.3 borosilicate glass and form part of the trusted Simax test and boiling tube range. Designed for durability and safety, each tube features a reinforced rolled rim and uniform wall thickness, ensuring dependable performance in educational and laboratory environments.

With a heavy‑duty 1.8mm wall thickness, these test tubes offer exceptional strength and resistance to breakage, making them ideal for repeated heating, boiling, and more demanding practical work. The borosilicate glass construction provides excellent thermal shock resistance and superior chemical resistance, supporting safe and long‑lasting use in busy school science labs.

Supplied in a compact box of 10, these longer, heavy‑duty test tubes are ideal for demonstrations, advanced practicals, or situations where extra‑robust glassware is required. The clear glass allows students to easily observe reactions, colour changes, and precipitate formation throughout experiments.

Key Features

• Box of 10 heavy‑duty rimmed test tubes
• Dimensions: 150mm length × 16mm diameter
• Heavy‑duty 1.8mm wall thickness for maximum durability
• Manufactured from 3.3 borosilicate glass
• Rolled rim for safer handling and reduced chipping
• Designed for efficient heat transfer
• Excellent thermal shock resistance
• High chemical resistance
• Uniform wall thickness for consistent laboratory performance

Ideal for School Science Lessons

Well suited to KS3, GCSE, and A Level science lessons, these Simax heavy‑duty borosilicate test tubes are ideal for experiments involving direct heating or more rigorous handling. Their longer length makes them especially useful for:

• Heating and boiling larger liquid samples
• Demonstrating chemical reactions safely and clearly
• Observing reaction rates, colour changes, and precipitates
• Teaching correct safe heating and handling techniques
• Supporting investigations that require extra‑durable laboratory glassware

Strong, reliable, and designed for repeated educational use, these Simax heavy‑duty rimmed test tubes provide a durable and dependable solution for effective hands‑on science teaching.