Test Tube Screw Cap, Plastic

Quick answer: This is a plastic test tube fitted with a screw cap, used for secure sample storage, specimen transport and general dispensing in school, college and small laboratory settings.

Plastic screw-cap test tubes are a practical alternative to open-top glass tubes wherever a sealed, spill-resistant container is needed. The screw-thread closure holds the cap firmly in place during handling, shaking and transport, which makes these tubes useful for field sample collection (water, soil, biological specimens), short-term reagent storage and teaching demonstrations where breakage risk needs to be kept low.

Being moulded in plastic rather than glass, these tubes are naturally more impact-resistant, which suits busy student laboratories and outdoor fieldwork. They are designed to sit in standard laboratory test tube racks and stands alongside glass tubes of comparable dimensions.

Technical Specifications

Applications

• School and college biology and chemistry practicals
• Field collection of water and soil samples
• Short-term specimen and reagent storage
• Spill-resistant transport of liquid samples between work areas

Care & Handling

• Hand-wash with a mild laboratory detergent and rinse thoroughly before reuse
• Avoid strong solvents that can craze or weaken plastic over time
• Keep away from open flame and direct high heat
• Check compatibility before autoclaving, as heat tolerance varies by plastic type
• Store upright in a test tube rack to keep the screw cap seated correctly

Why Choose LabEquip

LabEquip supplies laboratory glassware and plasticware to schools, colleges and research laboratories across India. Explore our wider lab glassware range or browse related chemistry lab equipment to complete your laboratory setup. For bulk or institutional requirements, contact us and our team will help you specify the right quantity and size.

Frequently Asked Questions

What is a plastic screw cap test tube used for?

It is used for secure storage and transport of liquid or solid laboratory samples, as well as general dispensing in teaching and research settings.

Is the screw cap leakproof?

The screw-thread closure is designed to create a secure seal that resists spillage during normal handling, shaking and transport between work areas.

Can these test tubes be reused?

Yes. They can be reused after being cleaned with a mild detergent and thoroughly rinsed, provided they show no cracking or damage to the cap thread.

What sizes are available?

These tubes are supplied in a range of standard laboratory sizes. Confirm the exact volume and dimensions you need when placing your enquiry.

Are these tubes suitable for use in a centrifuge?

For centrifuge use, check that the tube’s rated speed and material are matched to your specific centrifuge model before use.

Does LabEquip supply these for bulk or institutional orders?

Yes. LabEquip supplies plastic screw-cap test tubes to schools, colleges and laboratories across India, including bulk and institutional orders. Contact us for a quotation.

Last Updated: September 2026