Sourcing borosilicate test tubes from China

Duty and the glass expansion criterion

Heading 7017 covers laboratory, hygienic or pharmaceutical glassware, whether graduated or calibrated. For borosilicate test tubes, consider 7017 20 00 00 where the documented linear expansion coefficient meets that line's limit. Confirm the glass properties from a report for the supplied material. The table shows tube forms sharing this tariff line, rather than separate commodity codes.

Read from the UK Trade Tariff on 1 October 2026, all lines in the supplied heading record carried 0% duty for goods from China. The record lists no anti-dumping or countervailing duty, suspensions or attached import controls. This tariff snapshot does not establish suitability for laboratory use.

Confirm the commodity code using the intended use and glass expansion evidence. Our laboratory glassware guide covers the wider heading.

Specify the tube and its intended use

Specify the borosilicate glass grade, outside diameter, length, wall thickness and tolerances. Define the bottom shape, rim finish, capacity, graduation accuracy where relevant, and compatibility with your racks and closures. Ask for material evidence tied to the production batch, rather than accepting 'borosilicate' on a catalogue page.

Agree the heating, cooling, washing and sterilisation conditions the tubes will encounter. Ask the manufacturer to document suitability and provide handling instructions. UK employers are legally required to provide safe equipment for use at work. If the product is a diagnostic specimen receptacle, medical-device rules apply; confirm the applicable compliance requirements before ordering.

Worked duty example

Illustrative example, not a quote: 6,000 plain borosilicate laboratory test tubes; illustrative order and values under 7017 20 00 00, invoiced at £2,500 free on board, with £1,404 of freight and insurance to the UK. The customs value is £3,904. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £3,904, so it is £780.80. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.

Inspection checklist

Material and performance: match the batch documents to the ordered glass grade and expansion evidence. Test sampled tubes under the agreed heating, cooling and cleaning conditions.

Dimensions and fit: measure diameter, length and wall thickness against the drawing. Check bottom shape, straightness, rack fit and closure fit.

Finish and markings: inspect rims and bases for chips, cracks and uneven glass. Check internal cleanliness, legibility and any agreed graduation accuracy.

Packing and arrival: open sampled cartons, check separators and cushioning, and record broken tubes or loose glass fragments. Keep batch identities visible. Use the inspection guide to define the checks before shipment.

What goes wrong

A tube can match the catalogue dimensions yet have uneven walls, a chipped rim or a base that cracks during heating. An unsupported glass-grade claim leaves the buyer unable to judge performance. Approve material evidence and a representative sample, then compare production against both.

Poor separators let tubes strike each other in transit. Dust and fragments inside intact tubes can compromise laboratory work, while markings may fade during washing. Inspect arrival samples before releasing stock and investigate affected batches against the packing and cleaning specifications.

Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For own-brand ranges, see sourcing for brands.