ATEX component attestation: identify what is being supplied
An ATEX component has a specific meaning: it is essential to the safe functioning of equipment or protective systems but has no autonomous function. The name used on a purchase order does not, by itself, settle that classification.
Before collecting documents, ask the supplier to identify the legal status of the supplied item and the exact configuration covered. Record the response against the order line. A vague description such as an Ex part can leave purchasing, engineering and the assembler discussing different products while using the same name.
This guide proposes a purchasing document workflow. Its checklist is an editorial aid, not a prescribed legal template or a conformity assessment. The broader IECEx certificate and ATEX document verification guide remains useful for checking other parts of a product file.
What Article 13(3) changes, and what it does not
Article 13(3) applies the paragraph 1 procedures to components, except for affixing CE marking and drawing up an EU declaration of conformity. The manufacturer issues the written attestation instead. This is an ATEX-specific exception: other applicable EU legislation may separately require CE marking.
The European Commission's January 2026 ATEX Guidelines reproduce Article 13(3) on page 91 and explain component status and marking in section 46, page 55. Section 94 distinguishes the attestation from an EU declaration of conformity.
For a buyer, the practical question is therefore not whether every file contains a document with the same heading. It is whether the documents match the item actually offered. Avoid instructing a supplier to relabel an attestation as a declaration simply to fit an internal form. Escalate the form mismatch to the responsible compliance reviewer instead.
Compare the purchasing questions before comparing filenames
The following table separates document-review questions. It does not assign a conformity route to any particular product.
| Purchasing question | Useful evidence to organise | Question still requiring review |
|---|---|---|
| What exactly are we buying? | Order code, configuration reference and supplier description | Does every document describe that same item? |
| Why is it described as a component? | Manufacturer's explanation of the supplied product's status | Is the proposed purchasing description consistent with that status? |
| Where is the attestation? | Identifiable document linked to the supplied configuration | Are referenced documents accessible and their revisions clear? |
| What must the assembler consider? | Incorporation information and relevant supporting references | Who will evaluate the proposed finished configuration? |
| What reaches the next recipient? | A document index linked to the order and handover package | Can the recipient locate the evidence without reconstructing email chains? |
Build a traceable document index
Start with one order line and one evidence index. Enter the manufacturer's product reference exactly as supplied, including configuration suffixes. Add the attestation's identifier, date or revision, and the location of any referenced supporting documents. Preserve the original file as received; put internal comments in a separate review record.
If the paperwork uses a family name while the quotation uses a more specific code, ask for the relationship to be explained. Do not invent a cross-reference because two products look similar. A clear explanation can be reviewed; an assumption copied into several spreadsheets becomes harder to detect later.
For translations, keep a visible link to the source document. If a reviewer questions the wording, record the exact passage and the document revision in the query. This makes it easier to distinguish an unresolved technical issue from a simple difference in terminology.
The goal is not a large folder. It is a file that another reviewer can follow without relying on the memory of the person who collected it.
Give incorporation questions a named owner
Create a separate issue list for the proposed finished product. Each entry should identify the question, the source document, the person responsible for resolving it and the evidence needed to close it. A purchasing team can coordinate that list without pretending to perform the engineering assessment.
For example, a reviewer may find that the supplied information describes a different configuration from the assembly drawing. That is an evidence mismatch to resolve, not a reason to copy an acceptance decision from another order. Ask the responsible parties to reconcile the documents before treating the issue as closed.
Keep component evidence separate from the acceptance record for the complete product. The IECEx X and U suffix guide addresses a related but different question: interpreting certificate suffixes. This article does not make IECEx terminology interchangeable with the ATEX attestation requirement.
Maintain the handover through the supply chain
Name the party providing each document and the party receiving it. A reseller's email forwarding an attachment should remain distinguishable from the manufacturer's document inside that attachment. The distinction helps reviewers ask the right organisation when a revision, identity or scope question appears.
For commercial arrangements involving several organisations, the ATEX manufacturer and authorised representative guide and importer versus distributor guide provide separate role-focused reading. Avoid trying to solve those wider responsibilities by adding one generic approval box to a purchasing checklist.
Before closing the order file, check that open questions are still visible. Record a hold as a hold, a supplier response as a response, and a competent review decision as a decision. Receiving an attachment is an administrative event; it should not silently become an engineering acceptance.
Primary sources and reading limits
The Commission's current ATEX page identifies Directive 2014/34/EU and links the sixth-edition guidelines. The legal summary above uses the directive text reproduced there. The guidelines support interpretation; applicable legislation and its national implementation govern the actual case.
Current MMAIATEX certification status
MMAIATEX is the public brand of MMAIATEX Explosion-proof Technology (Zhejiang) Co., Ltd. On the review date, the company's About page describes ATEX, IECEx and CCC certification as in progress. This is an attributed website statement, not independent confirmation of a current product certificate. Verify the exact offered model, marking, certificate scope and current documentation before acceptance.
Safety and legal disclaimer
This article is purchasing information, not legal advice, assembly approval or installation guidance. It does not authorise incorporating a component into equipment. Product-specific conformity and suitability need review by the responsible competent parties under the applicable requirements.
Contact MMAIATEX about component documentation
For a product enquiry, share the proposed order reference, destination market and the component-document question you need addressed. Contact MMAIATEX.