Quick Answer:The Test Tubes (Pack of 100) come as a bulk pack of 100 medium-wall glass test tubes, with a 1.0–1.2 mm wall, in sizes from 12 × 75 mm to 25 × 150 mm for small-scale reactions and qualitative analysis.
Last updated: 18 October 2026
Key Features
Bulk pack of 100.
Medium wall, 1.0–1.2 mm thick.
Sizes 12 × 75, 15 × 125, 18 × 150 and 25 × 150 mm.
For watching colour changes, precipitates and gas evolution.
Technical Specifications
Specification
Value
Quantity
100
Sizes
12 × 75, 15 × 125, 18 × 150, 25 × 150 mm
Wall thickness
1.0–1.2 mm (medium wall)
How It Is Used
Test tubes hold small volumes for qualitative tests, simple reactions and biological cultures, letting students watch for colour changes, precipitates and gas. A pack of 100 keeps a busy laboratory stocked for large classes and frequent practicals.
Frequently Asked Questions
What sizes are the Test Tubes (Pack of 100) made in?
12 × 75 mm, 15 × 125 mm, 18 × 150 mm and 25 × 150 mm, all with a medium wall of 1.0–1.2 mm.
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