OEKO-TEX Article Numbers Covering One Construction and Not Its Sister
An OEKO-TEX certificate scope covers only explicitly listed article descriptions, leaving chemically modified sister constructions uncertified without separate testing.
Certificate Scope
Regulatory Range
A formal conformity document defines the precise boundaries of a textile manufacturer’s sustainability or quality certification. In third-party validation, the certificate scope lists the approved product categories, processing steps, and facilities that meet the specified standard. It ensures that mills do not claim certification for materials or operations that have not been audited.
Buyers inspect this list to verify the legitimacy of any claims regarding recycled content or organic fibres, confirming that the specific facility executing the order is fully authorized to do so.
Audit Verification
Field inspectors examine the production lines, chemical inventories, and transaction logs of the facility to confirm alignment. In practice, the certificate scope corresponds directly to the physical capabilities assessed during the annual audit. If a mill begins dyeing but is only certified for spinning, the scope will exclude wet processing.
This restriction prevents unauthorized processing and protects the integrity of the certification scheme.
Product Inclusion
Standardized product categories are explicitly listed to identify which textiles are covered. For example, a certificate scope might cover hundred percent organic cotton yarn but exclude polyester blends. This detailed list allows brands to trace the supply chain without relying on broad, unverified declarations of conformity.
Compliance Boundary
Authorized operations are restricted to the named geographical sites and technical processes. When a company changes its subcontractors or adds a new facility, the certificate scope must be updated to maintain compliance. It does not apply to future developments or unlisted partner mills.
This clear boundary prevents the illicit transfer of certified status to non-compliant operations.