Simax Test Tubes with Rim – 150 × 18mm, 1.2mm Wall (Box of 100)

The Simax Rimmed Test Tubes (150 × 18mm) are part of the premium Simax 3.3 borosilicate glass test and boiling tube range, designed for reliable performance in school and educational laboratories. Each test tube features a strengthened rolled rim and uniform wall thickness, ensuring excellent consistency, safe handling, and long service life.

With a medium‑duty 1.2mm wall thickness, these test tubes offer enhanced durability while maintaining efficient heat transfer. The borosilicate glass construction provides outstanding thermal shock resistance and chemical resistance, making these tubes ideal for heating, boiling, and a wide range of practical experiments.

Supplied in a convenient box of 100, these larger‑diameter and longer test tubes are ideal for class sets, demonstrations, and experiments involving greater sample volumes. The clear glass allows easy observation of reactions, precipitates, and colour changes during lessons.

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Key Features

• Box of 100 rimmed test tubes
• Dimensions: 150mm length × 18mm diameter
• Medium‑duty 1.2mm wall thickness for increased strength
• Manufactured from 3.3 borosilicate glass
• Rolled rim for safer handling and durability
• Designed for maximum heat transfer
• Excellent thermal shock resistance
• High chemical resistance
• Uniform wall thickness for consistent performance

Ideal for School Science Lessons

Ideal for KS3, GCSE, and A Level science lessons, these Simax borosilicate test tubes are particularly well suited to practical chemistry and general science experiments. Their larger diameter and extended length make them ideal for:

• Heating and boiling larger liquid volumes
• Clearly demonstrating chemical reactions to students
• Observing gas production, precipitates, and colour changes
• Carrying out qualitative and comparative tests
• Teaching correct laboratory handling and safety techniques

Robust, reliable, and designed for repeated classroom use, these Simax rimmed test tubes support safe experimentation and effective hands‑on learning in school science laboratories.