Sourcing pool chlorine photometers from China
Swimming-pool chlorine photometers from China have 0% UK duty across the relevant heading 9027 lines, with no listed trade remedies. For electronic models within scope, the importer must check the manufacturer's electromagnetic conformity assessment before sale in Great Britain. Cambridge China Bridge sources swimming-pool chlorine photometers.
Duty and classification for chlorine photometers
Read from the UK Trade Tariff on 18 October 2026, heading 9027 covers physical and chemical analysis instruments. A chlorine photometer measures the colour developed in a treated water sample. The other optical instruments line is a candidate classification; a spectrophotometer has a separate line. The table includes alternative classifications and parts, rather than interchangeable codes for the same instrument.
The supplied tariff data shows 0% duty for goods from China on every listed line, no anti-dumping or countervailing measures and no suspensions. The other analysis apparatus line carries an entry labelled Export control of mercury. The UK Trade Tariff attaches this control; confirm its relevance and any requirement with your customs broker, particularly for apparatus containing mercury.
Provide the measurement principle, optical arrangement, functions and kit contents when confirming the commodity code. See the pH meters guide for wider heading context. Do not assume separately supplied reagents share the instrument's code.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Other optical analysis instruments, including candidate chlorine photometers | 9027 50 00 00 | 0% | None |
| Spectrophotometers using optical radiation | 9027 30 00 00 | 0% | None |
| Other analysis apparatus, subject to classification | 9027 89 90 00 | 0% | None |
| Parts and accessories for analysis instruments | 9027 90 00 00 | 0% | None |
Specify the chlorine method and reagent system
Specify free chlorine, total chlorine or both, the measurement range, displayed units, accuracy and repeatability acceptance criteria. Agree the reagent formulation and format, sample volume, reaction timing, blanking method and vial orientation. Ask how the instrument handles coloured or cloudy water and readings outside its range.
Approve the exact instrument, reagents and sample cells together. Agree reagent storage instructions, expiry marking, replacement availability, battery arrangement and cleaning procedure. For electronic models within electromagnetic compatibility scope, importers must check the manufacturer's conformity assessment and provide importer identification and a postal address. Request the supporting documentation for the exact model through testing and certification.
Electrical equipment within hazardous-substance rules needs compliance evidence; confirm with the relevant authority which documents importers must retain, including any declaration of conformity. Commercial importers supplying electrical equipment to the UK market also need annual producer registration under waste electrical equipment rules.
Worked duty example
Illustrative example, not a quote: Illustrative batch of handheld swimming-pool chlorine photometers under 9027 50 00 00, invoiced at £10,000 free on board, with £900 of freight and insurance to the UK. The customs value is £10,900. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £10,900, so it is £2,180. 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
Readings: compare samples with an agreed reference method across the intended working range, and repeat measurements using the same reagent procedure.
Sample cells: check glass clarity, scratches, fill marks, caps and positioning in the optical chamber; test the blanking process.
Reagents: check the agreed formulation, batch identification, expiry marking, sealed packs and matching instructions.
Instrument and documents: check buttons, display, battery contacts, seals and supplied accessories against the approved sample; match conformity documentation and importer details to the delivered model.
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What goes wrong
A readable display does not prove a correct chlorine result. Wrong reagent chemistry, inconsistent reaction timing, scratched cells or a poorly reproduced blank can undermine measurements. Define the acceptance method before ordering and investigate disagreement before accepting the batch.
A kit can arrive with a different reagent formulation or cell design from the approved sample. Freeze these details in the specification and require approval before substitutions. Keep a reference kit for comparison when replacement reagents arrive.
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 chlorine photometers from China?
The relevant heading 9027 lines carry 0% duty in the supplied tariff data, with no listed anti-dumping or countervailing duty. Confirm the exact instrument's classification.
Which commodity code covers a pool chlorine photometer?
9027 50 00 00 is a candidate for other optical analysis instruments. Spectrophotometers have a separate line. Confirm using the optical principle, functions and kit contents.
Can I use different chlorine reagents?
Approve replacements against the instrument's method before use. Match formulation, sample volume, reaction timing and calibration assumptions; similar packaging is insufficient.
What compliance documents should I request?
Request model-specific conformity documentation and hazardous-substance evidence. For electrical equipment within scope, check manufacturer compliance and confirm with the relevant authority whether importers must retain a declaration of conformity.