Lab Test Tube with Cork Lid

Lab Glass Test Tube With Cork

Test tubes can be disposable or reusable. Test tubes with cork stoppers are usually made of glass or plastic, available in multiple sizes with round or flat bottoms. Jiangsu Guide Medlab supplies soda-lime and 3.3 borosilicate glass test tubes fitted with cork stoppers. 3.3 borosilicate glass tubes can stand autoclave sterilization. We also offer glass test tubes with screw caps.

Product Specification

Product name	Lab Glass Test Tube With Cork
Size	12x75mm/15x150mm/16x125mm/18x150mm/20x200mm
Material	Soda-lime glass / 3.3 borosilicate glass
Thickness	0.0~1.2mm
ml	2.5-25ml

●Advantage

Excellent chemical resistance, high temperature resistance.

Application

Application Guide Medlab lab glass test tubes with cork stoppers are widely used for sample storage, reaction observation and simple liquid culturing in chemical labs, school teaching experiments and environmental sample testing.

• Hold and temporarily store liquid samples. The cork stopper helps cut down liquid volatilization

• Run small-scale chemical reactions and observe reaction changes clearly

• Carry out simple specimen culturing and sample preparation for teaching labs

• Perform qualitative analysis and routine sample screening for environmental testing

Usage Method

• Choose the right size test tube based on your sample volume

• Do not fill liquid above 1/3 of the tube volume during heating

• Push the cork stopper in gently. Too much force may crack the glass tube

• Clean and dry completely after experiments for repeated use

Quality Control

Packing, Storage and Transportation

●Packing

Glass test tubes and cork stoppers are packed separately by default. Combined packing is available upon customer request. Different sizes of test tubes are packed individually. Outer cartons are marked with key specifications for easy sorting.

●Storage

Store glass test tubes with cork stoppers in a clean, dry and tidy warehouse.

●Transportation

Avoid rough handling and dropping during transit. Wooden frame reinforcement is recommended if needed.

FAQ

Q1: Do you offer free samples?

Yes, we provide free samples for your evaluation. Shipping cost is covered by the customer or negotiated separately.

Q2: What is minimum order quantity (MOQ)?

MOQ varies by products. MOQ for glass test tubes with cork is 5 cartons; for plasticwares, MOQ is 1 carton; for other glass labware products, MOQ is also 5 cartons. We can use pallets for large shipments to secure packages.

Q3: What payment methods do you accept?

We accept T/T (bank transfer) or payment via Alibaba.

Q4: Can I add my own design or logo to the product?

Yes, we provide OEM/ODM service. Custom packaging and logo printing are available.

Q5: Can you provide CE and ISO for your products?

Yes, all glass test tubes with cork come with complete technical documents including CE, ISO and COA.

Q6: Do you support shipping insurance and freight options?

Yes. We offer sea, air and courier shipping. Full insurance can be added as an option.

Q7: Is the glass test tube resistant to high temperature and corrosion?

We supply soda-lime glass and 3.3 borosilicate glass options. 3.3 borosilicate test tubes have good heat resistance and chemical inertness. They can withstand autoclave sterilization for regular chemical experiments.

Q8: How do you prevent breakage during shipping?

We use reinforced 5-layer corrugated cartons with buffer materials. Normally the breakage rate stays under 1%.

Q9: What is your policy for damaged goods?

If you find broken tubes after receipt, please send photos or videos within 48 hours. We will arrange free replacements or corresponding refunds.

Q10: What is your typical lead time?

For in-stock glass test tubes with cork, delivery takes 3–7 days. For bulk orders, lead time is generally 15–25 days.

Q11: Do you have a price list for bulk purchases?

Yes, we have tiered pricing based on order quantity. Please contact our sales team for an official quote.

Q12: What sizes and types of glass test tubes do you supply?

We have many common sizes: 12×75mm, 15×150mm, 16×125mm, 18×150mm, 20×200mm. Capacity ranges from 2.5ml to 25ml. Both soda-lime glass and 3.3 borosilicate glass versions are available. Screw cap test tubes are also optional.

Q13: Do you participate in international labware exhibitions?

Yes, we regularly join exhibitions including ARABLAB, ACHEMA and Analytica.

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