Subheading · Chapter 38 · Heading 3822
3822.90: Diagnostic or laboratory reagents on a backing, prepared: other
Certified reference materials and other reagents
Official description Other
3822.90 is the HS subheading for certified reference materials and other reagents, under heading 3822 in chapter 38.
What you pay
Importing into UK
Rates by national line · UK Global Tariff
UK lines →- 3822 90 00 00 Other Free
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 1
- Additional dutyAdditional duties 35%
- Applies to goods from
- Belarus, Russia
- Legal act
- 2022 No. 598
- Documents
Import requirements 5
- Prohibition or restrictionImport prohibition
- Applies to goods from
- North Korea
- Legal act
- S.I. 2019/411
- Import controlVeterinary control
- Applies to goods from
- Afghanistan, Albania, Algeria, American Samoa, Andorra, Angola, Anguilla, Antarctica and 232 more
- Legal act
- S.I. 2019/782
- Documents
- C084 Exemption by virtue of Articles 3 and 4 of regulation 2019/2122 (animals intended for scientific purposes, research and diagnostic samples, and samples for product analysis and quality testing).
- N853 Common Health Entry Document for Products (CHED-P) (as set out in Part 2, Section B of Annex II to Commission Implementing Regulation (EU) 2019/1715 (OJ L 261))
- Y058 Exemption by virtue of Article 7 of Commission Delegated Regulation 2019/2122 (Goods which form part of passengers' personal luggage and are intended for personal consumption or use) or Article 10 (small consignments of goods sent to natural persons which are not intended to be placed on the market) of Commission Delegated Regulation 2019/2122
- Y930 The declared goods are not concerned by Commission Implementing Regulation (EU) 2021/632
- Import controlRestriction on entry into free circulation
- Applies to goods from
- Syria, Ukraine
- Legal act
- S.I. 2019/792, S.I. 2022/395
- Import controlRestriction on entry into free circulation
- Applies to goods from
- all countries
- Legal act
- S.I. 2019/583, S.I. 2019/792
- Import controlImport control on restricted goods and technologies
- Applies to goods from
- Iran, Libya, North Korea, Russia
- Legal act
- S.I. 2019/461, S.I. 2019/411, 2020 No. 1665, S.I. 2019/855
Preferential rates by country
| Agreement or scheme | Countries | Rate |
|---|---|---|
| standard rate (no agreement) | — | Free |
| DCTS Comprehensive | Afghanistan, Angola, Bangladesh, Benin and 38 moreAfghanistan, Angola, Bangladesh, Benin, Bhutan, Burkina Faso, Burundi, Cambodia, Central African Republic, Chad, Comoros, Congo - Kinshasa, Djibouti, Eritrea, Ethiopia, Gambia, Guinea, Guinea-Bissau, Haiti, Kiribati, Laos, Liberia, Malawi, Mali, Mauritania, Myanmar (Burma), Nepal, Niger, Rwanda, São Tomé & Príncipe, Senegal, Sierra Leone, Somalia, South Sudan, Sudan, Tanzania, Timor-Leste, Togo, Tuvalu, Uganda, Yemen, Zambia | Free |
| European Union (including code "EU") | Free | |
| DCTS Enhanced | Algeria, Bolivia, Cape Verde, Congo - Brazzaville and 13 moreAlgeria, Bolivia, Cape Verde, Congo - Brazzaville, Cook Islands, Kyrgyzstan, Micronesia, Mongolia, Nigeria, Niue, Pakistan, Philippines, Sri Lanka, Syria, Tajikistan, Uzbekistan, Vanuatu | Free |
| CARIFORUM | Antigua & Barbuda, Bahamas, Barbados, Belize and 10 moreAntigua & Barbuda, Bahamas, Barbados, Belize, Dominica, Dominican Republic, Grenada, Guyana, Jamaica, St Kitts & Nevis, St Lucia, St Vincent & the Grenadines, Suriname, Trinidad & Tobago | Free |
| OCTs (Overseas Countries and Territories) | Anguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands and 7 moreAnguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands, Cayman Islands, Falkland Islands, Montserrat, Pitcairn Islands, South Georgia & South Sandwich Islands, St Helena, Turks & Caicos Islands | Free |
| SADC EPA | Botswana, Eswatini, Lesotho, Mozambique, Namibia | Free |
| CPTPP | Brunei, Chile, Malaysia, Mexico | Free |
| Eastern and Southern Africa States | Madagascar, Mauritius, Seychelles, Zimbabwe | Free |
| UK–Andorra agreement | Andorra | Free |
| UK–Albania agreement | Albania | Free |
| UK–Australia agreement | Australia | Free |
| UK–Canada agreement | Canada | Free |
| UK–Switzerland agreement | Switzerland | Free |
| UK–Côte d’Ivoire agreement | Côte d’Ivoire | Free |
| UK–Cameroon agreement | Cameroon | Free |
| UK–Colombia agreement | Colombia | Free |
| UK–Ceuta & Melilla agreement | Ceuta & Melilla | Free |
| UK–Ecuador agreement | Ecuador | Free |
| UK–Egypt agreement | Egypt | Free |
| UK–Fiji agreement | Fiji | Free |
| UK–Faroe Islands agreement | Faroe Islands | Free |
| UK–Georgia agreement | Georgia | Free |
| UK–Ghana agreement | Ghana | Free |
| DCTS Standard | Indonesia | Free |
| UK–India agreement | India | Free |
| UK–Iceland agreement | Iceland | Free |
| UK–Jordan agreement | Jordan | Free |
| UK–Japan agreement | Japan | Free |
| UK–Kenya agreement | Kenya | Free |
| UK–South Korea agreement | South Korea | Free |
| UK–Liechtenstein agreement | Liechtenstein | Free |
| UK–Morocco agreement | Morocco | Free |
| UK–Moldova agreement | Moldova | Free |
| UK–North Macedonia agreement | North Macedonia | Free |
| UK–Norway agreement | Norway | Free |
| UK–New Zealand agreement | New Zealand | Free |
| UK–Peru agreement | Peru | Free |
| UK–Papua New Guinea agreement | Papua New Guinea | Free |
| UK–Palestinian Territories agreement | Palestinian Territories | Free |
| UK–Serbia agreement | Serbia | Free |
| UK–Solomon Islands agreement | Solomon Islands | Free |
| UK–Singapore agreement | Singapore | Free |
| UK–San Marino agreement | San Marino | Free |
| UK–Ukraine agreement | Ukraine | Free |
| UK–Vietnam agreement | Vietnam | Free |
| UK–Samoa agreement | Samoa | Free |
| UK–Kosovo agreement | Kosovo | Free |
| UK–South Africa agreement | South Africa | Free |
UK: imports by month
Main suppliers, last 12 months
| Country | Value | Share | Change |
|---|---|---|---|
 United States | £51.3m | 30.6% | +1.2% |
 Germany | £16.4m | 9.8% | +1.3% |
 Japan | £14.2m | 8.5% | +50.9% |
 China | £13.8m | 8.2% | +9.9% |
 France | £10.3m | 6.2% | +10.9% |
 Australia | £6.4m | 3.8% | +1.9% |
 Taiwan | £5.9m | 3.5% | +40.2% |
 Netherlands | £5.6m | 3.3% | +26.7% |
Same subheading in other tariffs
EU
TürkiyeWorld trade in 2024
Trade value (US$) no reported trade < US$39kUS$39k+US$3m+US$66m+> US$203m
Exports: 199
- United States: US$1bn
- United Kingdom: US$665m
- Germany: US$561m
- China: US$432m
- France: US$298m
- Italy: US$203m
- Netherlands: US$193m
- Japan: US$164m
- Sweden: US$126m
- Belgium: US$120m
- Hong Kong SAR China: US$108m
- Spain: US$103m
- Ireland: US$94m
- Singapore: US$89m
- Taiwan: US$80m
- India: US$75m
- Switzerland: US$74m
- Austria: US$66m
- Poland: US$66m
- Canada: US$65m
- Australia: US$60m
- South Korea: US$60m
- Türkiye: US$52m
- Denmark: US$44m
- Finland: US$27m
- Lithuania: US$23m
- Latvia: US$21m
- South Africa: US$21m
- Hungary: US$20m
- Romania: US$18m
- Norway: US$16m
- Bulgaria: US$15m
- Greece: US$14m
- Luxembourg: US$13m
- Israel: US$11m
- Thailand: US$10m
- Czechia: US$10m
- Portugal: US$9m
- Vietnam: US$9m
- Argentina: US$8m
- Russia: US$8m
- New Zealand: US$7m
- Malaysia: US$7m
- United Arab Emirates: US$4m
- Ukraine: US$4m
- Estonia: US$4m
- Cyprus: US$3m
- Brazil: US$3m
- Mexico: US$3m
- Slovenia: US$3m
- Kazakhstan: US$3m
- Armenia: US$3m
- Slovakia: US$2m
- Guatemala: US$2m
- Kenya: US$2m
- Serbia: US$2m
- Costa Rica: US$2m
- Philippines: US$2m
- Colombia: US$1m
- Chile: US$872k
Trade value (US$) no reported trade < US$4mUS$4m+US$15m+US$65m+> US$222m
Imports: 215
- United States: US$448m
- Germany: US$322m
- Hong Kong SAR China: US$317m
- France: US$301m
- Thailand: US$275m
- India: US$240m
- United Kingdom: US$222m
- Italy: US$207m
- China: US$184m
- Spain: US$149m
- Netherlands: US$146m
- Canada: US$134m
- Singapore: US$128m
- Mexico: US$110m
- Belgium: US$109m
- Brazil: US$101m
- Russia: US$98m
- Türkiye: US$93m
- Ireland: US$90m
- Switzerland: US$74m
- Malaysia: US$71m
- Poland: US$65m
- Australia: US$59m
- Greece: US$57m
- Saudi Arabia: US$54m
- South Africa: US$54m
- Austria: US$52m
- Indonesia: US$51m
- Sweden: US$42m
- Philippines: US$39m
- Japan: US$39m
- Pakistan: US$38m
- Denmark: US$36m
- Portugal: US$30m
- South Korea: US$30m
- Peru: US$28m
- Vietnam: US$27m
- United Arab Emirates: US$27m
- Czechia: US$26m
- Romania: US$26m
- Norway: US$25m
- New Zealand: US$24m
- Lithuania: US$23m
- Uganda: US$22m
- Costa Rica: US$22m
- Uzbekistan: US$18m
- Finland: US$18m
- Chile: US$18m
- Croatia: US$18m
- Taiwan: US$16m
- Cyprus: US$16m
- Argentina: US$16m
- Ukraine: US$15m
- Algeria: US$15m
- Iraq: US$15m
- Iran: US$13m
- Ecuador: US$13m
- Colombia: US$13m
- Kazakhstan: US$12m
- Serbia: US$12m
Top exporters
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | United States | US$1bn | 23.4% |
| 2 | United Kingdom | US$665m | 12.4% |
| 3 | Germany | US$561m | 10.4% |
| 4 | China | US$432m | 8% |
| 5 | France | US$298m | 5.5% |
| 6 |  Italy | US$203m | 3.8% |
| 7 | Netherlands | US$193m | 3.6% |
| 8 | Japan | US$164m | 3% |
| 9 |  Sweden | US$126m | 2.3% |
| 10 |  Belgium | US$120m | 2.2% |
Top importers
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | United States | US$448m | 8.3% |
| 2 | Germany | US$322m | 6% |
| 3 |  Hong Kong SAR China | US$317m | 5.9% |
| 4 | France | US$301m | 5.6% |
| 5 |  Thailand | US$275m | 5.1% |
| 6 |  India | US$240m | 4.5% |
| 7 | United Kingdom | US$222m | 4.1% |
| 8 | Italy | US$207m | 3.8% |
| 9 | China | US$184m | 3.4% |
| 10 |  Spain | US$149m | 2.8% |
Binding rulings for similar goods 1
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- 600014539 HMRC
Test tablets are plastic discs available in sizes of 16 mm and 25 mm diameter, each containing a single metal test sphere. These spheres come in diameters of up to 1.5 mm and 3.2 mm, and are available in Ferrous, Brass, Phosphor Bronze, Stainless Steel and Aluminium. Test tablets are certified and…
Code history
Since 2022; before, these goods were classified under 3822.00.
The UK Global Tariff has one tariff line for subheading 3822.90; the duty is duty-free.
Subheading 3822.90 is a single line in the EU Combined Nomenclature, where the duty is duty-free.
164 countries pay no duty in the UK thanks to trade agreements and preference schemes such as DCTS Comprehensive and European Union, against a standard rate of Free.
In the UK, additional duty of 35% applies on top of the customs duty to goods from Belarus and Russia.
Imports of certified reference materials and other reagents into the UK came to £167.5m between September 2025 and August 2026 (up 3% on the year before); United States supplied 31%, followed by Germany.
In 2024, countries exported certified reference materials and other reagents worth US$5bn (−8.7% year on year).
The largest exporter was the United States (US$1bn), followed by the United Kingdom.
Questions and answers
What is the HS code for diagnostic or laboratory reagents on a backing, prepared: other?
Diagnostic or laboratory reagents on a backing, prepared: other fall under HS subheading 3822.90, part of heading 3822, in section VI of the Harmonized System.
What is the import duty on diagnostic or laboratory reagents on a backing… in the UK?
Under the UK Global Tariff, imports under 3822.90 from countries without a preferential agreement are free of duty. Preferential rates, anti-dumping duties and VAT are not included.
What is the import duty on diagnostic or laboratory reagents on a backing… in the EU?
Under the EU Combined Nomenclature, imports under 3822.90 from countries without a preferential agreement are free of duty. Preferential rates, anti-dumping duties and VAT are not included.
Which country exports the most diagnostic or laboratory reagents on a backing…?
The United States, with US$1bn in 2024 (23.4% of world exports).
Which countries can export certified reference materials and other reagents to the UK duty-free?
164 countries pay no duty under a trade agreement or preference scheme, among them partners under DCTS Comprehensive, European Union, DCTS Enhanced. The goods must meet the agreement’s rules of origin and the importer needs proof of origin; otherwise the standard rate of Free applies. Pick a country above to see its rate.
Is there anti-dumping duty on certified reference materials and other reagents?
The UK charges additional duty of 35% on goods from Belarus and Russia. Lower rates apply to the named exporters listed in the measure.
Where does the UK import certified reference materials and other reagents from?
In the 12 months to August 2026, the largest suppliers were United States (31%), Germany (10%) and Japan (9%), out of total imports of £167.5m.