250 Count 13 x 100 mm Borosilicate Glass Culture/Test Tubes, PREMIUM VWR

Description

250  Disposable Culture Tubes. (due to machine packaging, quantities per case are approximate.)
Size: 13 x 100 mm  (O.D. x L)
Overflow Volume: 9 ml
VWR catalog #: 47729-572
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The tubes are resistant to chemical attack and weathering.
Chemically inert
High heat tolerance
Uniform dimensions
Convenient dispensing packages
Manufactured from Type I, Class B borosilicate glass, each tube is heat-treated at temperatures exceeding 500°C (932°F) immediately before packing, which eliminates contamination, increases strength, and reduces breakage.
Contents will not leach out and contaminate solutions. Borosilicate glass construction prevents pH change in laboratory tests.
Tubes exceed USP Type I specifications. 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. Tubes are clean-sealed in a convenient dispensing package to keep them free from dust and other particulate contamination.