Sourcing fluorescence microscopes from China

UK duty on fluorescence optical microscopes

Read from the UK Trade Tariff on 1 October 2026, heading 9011 covers compound optical microscopes, including those for photomicrography, cinephotomicrography or microprojection. Fluorescence is an imaging method rather than a separate line in the supplied tariff data. The relevant lines carry 0% duty for goods from China, with no recorded anti-dumping or countervailing duty and no listed suspension.

The supplied tariff data attaches a DCMS Export Licence control to each line. Official guidance treats cultural-object export licensing separately from imports into Great Britain, where cultural objects have no import licensing requirement. If importing an antique instrument from China, check the exporting country's licensing requirements. Ask your customs broker to confirm how the attached tariff control applies to your shipment.

Confirm the commodity code from the complete instrument, its imaging equipment and any separately supplied parts. A camera connection alone is not a substitute for checking the tariff description. See the wider microscope guide for the heading beyond fluorescence models.

Specify the fluorescence optical path

State whether the instrument is upright, inverted or stereoscopic, and identify the specimens and fluorophores it will image. Specify the excitation filters, dichroic mirrors and emission filters as matched sets. Agree the illumination source, brightness adjustment, shutter, filter-change mechanism and replacement component availability.

Define objective grade, numerical aperture, working distance, immersion medium and compatibility with your sample vessels. Confirm the camera mount, sensor coverage and supplied software functions. Approve fluorescence images from a reference specimen with the exposure settings recorded, rather than judging the instrument from brightfield photographs.

For mains-powered models sold in Great Britain, confirm with the relevant authority which electrical safety evidence, declaration of conformity, CE or UKCA marking and UK importer identification are required. Also confirm whether electromagnetic compatibility, restricted substances and waste electrical equipment obligations apply, and consult the wider microscope guide. Include the power supply in the model documentation review.

Worked duty example

Illustrative example, not a quote: Illustrative order: 50 basic fluorescence optical microscopes under 9011 80 00 00, invoiced at £27,000 free on board, with £1,500 of freight and insurance to the UK. The customs value is £28,500. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £28,500, so it is £5,700. 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

Fluorescence: image the agreed reference specimen through every supplied filter set; check signal, background, illumination uniformity and leakage between channels using consistent exposure settings.

Optics and mechanics: check field sharpness, objective parfocality, filter identification, nosepiece engagement and stage movement; confirm focus holds during image capture.

Camera and controls: test the supplied camera, image capture, shutter and brightness adjustment; verify that delivered components match the approved configuration.

Documents and packing: match model labels and conformity documents to the shipment; inspect the power supply and plug, secure the optical head and protect filters from movement and moisture. Use the inspection guide to write the acceptance brief.

What goes wrong

A microscope can produce a clear brightfield image yet deliver weak fluorescence because the light source and filter set do not suit the fluorophore. Camera gain can disguise background noise in demonstration images. Ask for raw images and recorded settings from the agreed specimen before approving the configuration.

Substituted objectives, loose filter assemblies and focus drift can make the delivered instrument behave differently from the sample. Poor packing can disturb alignment. Record approved component identities and compare arrival images with the sample record before accepting substitutions or releasing the batch.

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.