CUPAL ISO 9001:2015 compliance (WMH supplier chain)

The CUPAL copper-aluminium bimetal base material is supplied by our German supplier, WMH Westdeutscher Metall-Handel GmbH, under an ISO 9001:2015 certified quality management system. This article summarises what this compliance means from the buyer's perspective — particularly for anyone working on a public procurement or an audit.

What does ISO 9001:2015 mean in the supplier chain?

ISO 9001:2015 is the international standard that sets out the requirements for quality management systems. A certified supplier:

• works with documented procedures at every step of material ordering, production oversight and dispatch
• provides traceable shipments (lot / charge) that can be tracked back
• runs internal audits as well as external audits by an independent, accredited auditor
• delivers every CUPAL shipment with consistent material quality, manufactured to the same process

Where does the certification appear on a CUPAL shipment?

• The delivery note issued by WMH references the relevant Werkstoff (material) numbers (Al 3.0255 / DIN 17007 and Cu 2.0065 / DIN 1787).
• Every shipment comes with a manufacturer's declaration of conformity to EN 10204 2.2 by default.
• EN 10204 3.1 (manufacturer's inspection certificate with measured data tied to the specific lot) can be issued on request.
• A copy of the ISO 9001:2015 certificate is provided at project level — for audits, public procurement or approval processes — together with the quotation.

Why does this matter to the buyer?

The ISO 9001:2015 certification delivers direct value in the following situations:

• Public procurement: a supplier's quality management certificate is a frequent requirement at tender submission.
• Audited manufacturers: if the buyer itself operates under an audited system (e.g. IATF 16949, ISO 9001, IRIS), the procured base material must likewise come from a traceable, certified chain.
• Liability and warranty: a certified supplier chain demonstrates that any joint failure was not caused by fluctuation in material quality — an important consideration in the installer's liability questions.

How can you request a copy of the certificate?

For a specific project, please indicate this together with your quote request — we send the copy of the certificate along with the quotation. It is also available on general information requests: write to us via the contact page.

Related documents

• CUPAL material and application standards (DIN, IEC, MSZ EN) — the CUPAL material standards (DIN 17007, DIN 1787) and the application-area standards (DIN 43671, IEC 61439, IEC 61238, IEC 62305).
• Standards and compliance (product page) — an overview of the standards relevant to the CUPAL product range.

For a project-specific ISO 9001:2015 certificate or material certificate request, contact us.