{"id":"wpc-tech-2026-article-wpc-test-reports-service-life-specification-en","slug":"wpc-test-reports-service-life-specification","locale":"en","url":"https://woodplasticcomposite.net/guides/wpc-test-reports-service-life-specification/","aiAssisted":true,"answer":"A useful report connects a defined product, a reproducible method and a relevant result. It does not automatically certify every product from the same manufacturer.","author":"NFC & WPC Knowledge Reference","categoryId":"wpc-tech-2026-category-wpc-technical-design-series-en","change_note":"Original educational article informed by Klyosov (2007). Modern project applications are editorial synthesis. This is not a product certificate or a substitute for project-specific design.","description":"A practical evidence checklist for architects, category managers and technical buyers.","faqIds":["wpc-tech-2026-faq-technical-wpc-test-reports-service-life-specification-en"],"heroImageId":"","modified":"2026-10-01","noindex":false,"published":"2026-10-01","referenceIds":["wpc-tech-2026-reference-technical-series-book-20-en","wpc-tech-2026-reference-technical-series-standards-en","wpc-tech-2026-reference-technical-series-green-plank-en"],"related":["wpc-tech-2026-article-wpc-materials-wood-fibre-polymer-additives-en","wpc-tech-2026-article-solid-hollow-wpc-profile-bending-design-en"],"review_status":"Technical and language review not yet recorded","reviewedAt":"","reviewer":"","sections":[{"heading":"The technical principle","id":"technical-principle","references":[1],"text":"Start with sample identity, production date, formulation or profile description, laboratory and test method. Distinguish a material coupon from a complete assembly. Record conditioning, temperature, loads and measured outcomes. A pass statement without this context is difficult to apply to a real project.","url":"https://woodplasticcomposite.net/guides/wpc-test-reports-service-life-specification/#technical-principle"},{"heading":"What to specify and verify","id":"specification","references":[1,2],"text":"Separate short-term tests, accelerated ageing, field observations, warranty and predicted service life. They answer different questions. Extrapolation requires an appropriate model, representative failure mechanisms and stated uncertainty; it should not be reduced to an unexplained hours-to-years multiplier.","url":"https://woodplasticcomposite.net/guides/wpc-test-reports-service-life-specification/#specification"},{"heading":"Application and common mistakes","id":"application","references":[1,2],"text":"The EN 15534 series distinguishes test methods from product specifications. Confirm current editions and applicable requirements before procurement. When discussing Green Plank, request reports for the proposed product and dated Nordic references. Match evidence to the use case, and keep the approved documents with the order and installation record.","url":"https://woodplasticcomposite.net/guides/wpc-test-reports-service-life-specification/#application"},{"heading":"Discuss your project with Green Plank","id":"green-plank-project","references":[3],"text":"For a Green Plank specification, request samples and current technical documents for the exact profile and intended application. Use the Green Plank link in Sources to explore the range and make an enquiry. Commercial disclosure: this portal features Green Plank. General material science does not certify any particular product.","url":"https://woodplasticcomposite.net/guides/wpc-test-reports-service-life-specification/#green-plank-project"}],"seoDescription":"A practical evidence checklist for architects, category managers and technical buyers.","seoTitle":"How to read a WPC test report and service-life claim","tableText":"Specification check | Evidence to request\nIdentity | Match report to supplied profile\nMethod | Record conditioning and procedure\nInterpretation | Separate warranty, prediction and observation","table_caption":"Project specification checklist","tagIds":[],"takeaways":"Identity: Match report to supplied profile.\nMethod: Record conditioning and procedure.\nInterpretation: Separate warranty, prediction and observation.","title":"How to read a WPC test report and service-life claim","topicIds":[],"translationGroup":"wpc-technical-guide-20-2026","version":1,"references":[{"accessed":"2026-10-01","description":"","noindex":false,"publisher":"John Wiley & Sons","seoDescription":"","seoTitle":"Klyosov, A. A. (2007). Wood–Plastic Composites. Chapters 7 and 15; pp. 225–248, 493–550.","title":"Klyosov, A. A. (2007). Wood–Plastic Composites. Chapters 7 and 15; pp. 225–248, 493–550.","type":"Book","url":"https://doi.org/10.1002/9780470165935"},{"accessed":"2026-10-01","description":"","noindex":false,"publisher":"BSI","seoDescription":"","seoTitle":"BSI — EN 15534 series: test methods and product specifications","title":"BSI — EN 15534 series: test methods and product specifications","type":"Web reference","url":"https://landingpage.bsigroup.com/LandingPage/Series?UPI=BS+EN+15534"},{"accessed":"2026-10-01","description":"","noindex":false,"publisher":"Green Plank","seoDescription":"","seoTitle":"Green Plank — product information and technical enquiries","title":"Green Plank — product information and technical enquiries","type":"Web reference","url":"https://greenplank.eu/"}],"faqs":[{"question":"Does a long warranty prove a tested service life?","answer":"No. Warranty terms and technical life predictions are different forms of information."}]}