Features
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- Durable white ceramic enamel marking spot on each tube
- Designed from ASTM Specification E982, Type I requirements
- Made from KG-33 glass tubing with a sturdy lip and uniform wall thickness for maximum heat transfer and chemical resistance
- Tubes feature well-rounded bottoms and fire-polished tops free of rough edges
- Dimensional specifications of these tubes are rigidly controlled for reliable, uniform results
| Rubber Stopper Sizes | 000 | 00 | 0 | 1 | 2 | 3 | 4 | 5 | 5 1/2 | 6 | 6 1/2 | 7 | 7 1/2 | 8 |
| Diameter of top | 13 mm | 15 mm | 17 mm | 19 mm | 20 mm | 24 mm | 26 mm | 27 mm | 28 mm | 32 mm | 34 mm | 37 mm | 39 mm | 41 mm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diameter of bottom | 8 mm | 10 mm | 13 mm | 14 mm | 16 mm | 18 mm | 20 mm | 23 mm | 24 mm | 26 mm | 27 mm | 30 mm | 31 mm | 33 mm |
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