Direct answer and current-guidance boundary
In Great Britain, equipment intended for use in potentially explosive atmospheres is governed by the Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations 2016. “UKEX” is widely used as industry shorthand for the UK explosive-atmospheres conformity route, while the formal legal and marking requirements are set out in the 2016 Regulations and current government product-marking guidance. The correct route depends on the intended market, product category, manufacturer and conformity-assessment circumstances.
Government policy can change. Confirm the current official guidance when the equipment is placed on the market; this page is a project-scoping guide, not legal advice or a conformity assessment.
What is the practical difference between ATEX and UKEX for a UK filling-machine buyer?
ATEX refers to the EU framework for equipment intended for explosive atmospheres; UKEX is common shorthand for the Great Britain framework derived from the 2016 Regulations. The technical concepts are closely related, but the market, economic-operator duties, conformity route, declaration, approved or notified body involvement and marking must be checked for the actual supply.
Current Great Britain government guidance recognises CE-marked goods meeting EU requirements for many product sectors alongside the UKCA route. The dedicated guidance for explosive-atmosphere equipment states how this applies to the 2016 Regulations. A buyer should therefore request the actual conformity basis and documents rather than asking only whether a machine is “ATEX” or “UKEX”.
Market and project questions to resolve before order| Intended market | Starting framework | Buyer question |
| Great Britain | Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations 2016, with current UKCA/CE recognition guidance. | Which route is being used, who is the manufacturer or importer, and which declaration, marking and technical evidence will be supplied? |
| Northern Ireland | Separate Northern Ireland regulations and Windsor Framework arrangements. | Does the conformity route require CE alone or CE with UKNI, and which body has performed any required third-party assessment? |
| European Union / EEA | ATEX Directive 2014/34/EU and CE marking. | Is the equipment placed on the EU market under the correct manufacturer, notified-body and declaration route? |
| Multi-market project | Potentially more than one conformity and marking route. | Have the markets, versions, declarations, labels and technical-file responsibilities been agreed before manufacture? |
Does CE recognition remove the buyer’s DSEAR duties?
No. Product-market conformity and workplace explosion-safety duties are separate. DSEAR requires the employer to assess and control dangerous-substance risks, classify hazardous areas where necessary and manage the installed process. Equipment marking and documentation support that duty but do not create the site classification, ventilation design, operating procedure or overall explosion-safety verification.
Equipment and market evidence
- Intended market and applicable regulations.
- Manufacturer, importer and distributor roles.
- Conformity-assessment route and body involvement where required.
- Declaration, marking, instructions and technical documentation.
- Stated intended use, limits and installation conditions.
Workplace and project evidence
- DSEAR assessment and approved hazardous-area classification.
- Product release, ventilation, extraction and static-control basis.
- Machine location, utilities and connected equipment.
- Operating, cleaning, maintenance and fault-recovery procedures.
- FAT, SAT, verification and management-of-change records.
What should the purchase specification say about marking and documents?
- Name the intended market or markets. State Great Britain, Northern Ireland, EU/EEA or another destination rather than using “UK” as an ambiguous shorthand.
- Define the machinery scope. Identify the filler, pumps, controls, conveyors, capping, labelling and external safety devices that form the supplied assembly.
- Provide the competent classification. Include Zone, extent, gas group, temperature requirement and any external measures relied on by the equipment.
- State required deliverables. List the declaration, marking, instructions, certificates where applicable, drawings, equipment schedule and acceptance evidence.
- Control changes. Agree how changes to product, market, machine scope, components or intended use will be assessed and documented.
Common ATEX and UKEX documentation mistakes
Using UKEX as if it were one universal certificate
The required conformity procedure depends on the equipment category and route. Ask for the actual legal basis, documents and responsible parties.
Assuming CE recognition approves the installation
Recognition concerns placing products on the market. The buyer still needs competent site classification, installation, verification and operating controls.
Ignoring the final destination market
A machine intended for GB, Northern Ireland and the EU may need different declarations, body involvement or markings. Define destinations before the design is frozen.