Sourcing glass lab thermometers from China
Liquid-in-glass laboratory thermometers from China carry 0% UK duty under 9025 11 80 90. Specify a non-mercury filling: mercury thermometers face import and sale prohibitions, with narrow exceptions. Agree immersion depth and accuracy before ordering. Cambridge China Bridge sources liquid-in-glass laboratory thermometers.
Duty and mercury controls
Read from the UK Trade Tariff on 30 September 2026, non-clinical liquid-filled thermometers for direct reading under 9025 11 80 90 carried 0% duty for goods from China. The supplied tariff data lists no anti-dumping or countervailing duty and no suspension for this line. Heading 9025 covers thermometers and other measuring instruments. The table shows specification variants sharing the same commodity code.
The UK Trade Tariff attaches an import control of mercury and an export control of mercury to this line. Confirm the applicable import, manufacture and export controls and any exceptions for mercury-added thermometers with the Environment Agency. Buy non-mercury models for ordinary laboratory supply. If a supplier proposes a mercury model, confirm the requirement with your customs broker and contact the Environment Agency about the controls before ordering.
Confirm the commodity code using the filling, direct-reading construction and intended use. For other instruments within the heading, see thermocouple probes. A zero duty rate does not remove mercury restrictions.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Non-mercury liquid-in-glass laboratory thermometers, partial immersion | 9025 11 80 90 | 0% | None |
Specify filling, immersion and scale
Ask for written confirmation of the filling liquid and an approved sample. Specify the temperature range, scale divisions, permitted reading error, overall length, bulb dimensions and protective case. Agree whether the scale is enclosed or marked on the stem, and whether the thermometer will be used in a bath, vessel or apparatus.
State partial or total immersion and the intended immersion depth. Ask the factory to identify the calibration conditions and match them to your working method. Request calibration records that identify the supplied instruments, rather than a certificate for an unrelated sample.
Worked duty example
Illustrative example, not a quote: Illustrative small-business batch of individually cased non-mercury laboratory thermometers under 9025 11 80 90, invoiced at £5,100 free on board, with £1,500 of freight and insurance to the UK. The customs value is £6,600. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £6,600, so it is £1,320. 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
Filling and column: check the written non-mercury declaration, liquid colour and an uninterrupted column without visible bubbles or separation.
Accuracy: compare readings with a calibrated reference across the agreed range, using the specified immersion method and recording any deviation.
Glass and scale: inspect bulbs and stems for cracks, chips and distortion; check that graduations, units and immersion marks match the approved sample.
Packing and records: check individual protection, case fit and instrument identification against calibration records. Repeat these checks on arrival and record transport damage before distributing stock.
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What goes wrong
A thermometer can give misleading readings when its immersion method differs from the calibration conditions. An unclear purchase specification can also produce a readable scale with the wrong range or divisions. Agree the working method and acceptance criteria through testing and certification.
Separated liquid columns, chipped bulbs and rubbed-off graduations are reasons to hold affected stock for assessment. Protective cases alone do not establish that the shipment arrived intact. Compare the delivered batch with the approved sample and retain photographs of defects.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For components and parts, see sourcing for manufacturers.
Frequently asked questions
What is the UK import duty on glass laboratory thermometers from China?
The supplied tariff data gives 0% duty under 9025 11 80 90 for non-clinical liquid-filled direct-reading thermometers, with no anti-dumping or countervailing duty.
Can I import mercury laboratory thermometers?
Confirm the applicable import and sale controls and any exceptions for mercury thermometers with your customs broker and the Environment Agency. Do not assume laboratory use qualifies for an exception.
What should I specify before ordering?
Specify the non-mercury filling, range, scale divisions, reading tolerance, immersion method, dimensions and protective packing. Match calibration conditions to the intended laboratory method.
How do I check thermometer accuracy on arrival?
Compare readings with a calibrated reference across the agreed range using the specified immersion method. Record deviations and inspect the liquid column, glass and scale before releasing stock.