Test Tube Glass with Screw Cap

These glass test tubes with screw caps are offered in seven size options for compatible laboratory sample handling and storage. Select the dimensions needed for your procedure and check the fit with your tube rack before ordering.

Arrange labelled tubes in a suitable rack to keep samples organized between handling steps.

Product details

• Type: glass test tube with screw cap.
• Glass: borosilicate 3.3, as listed.
• Origin: China, as listed.
• Selectable size labels: 10 × 100 mm, 12 × 100 mm, 16 × 150 mm, 18 × 150 mm, 25 × 150 mm, 25 × 200 mm and 24 × 270 mm.

Size and compatibility

The size labels are dimensions, not liquid capacities. Confirm diameter measurement, usable capacity and rack compatibility for the selected size. The screw-cap closure does not by itself establish leakproof performance, airtightness or suitability for sample transport.

Specifications to confirm

Pack count, cap material, liner type, sterility and manufacturer identity are not specified. Temperature limits, autoclave suitability, chemical compatibility and centrifugation ratings require confirmation for both the tube and its closure. The earlier 0.25 kg listing weight does not establish the number of tubes supplied.

Handling and care

Inspect the glass and closure for damage before use. Follow the supplier's cleaning and closure instructions. Do not heat a tightly sealed tube or use it for pressurized procedures without an appropriate verified rating.