Accreditation scope, not just accreditation
A laboratory holding ISO/IEC 17025 accreditation is accredited for specific methods and matrices. Confirm the relevant parameter and matrix are inside its scope; accreditation for one does not imply competence in another.
Risk-based frequency beats uniform testing
Test every lot from new suppliers and for high-risk parameters, then reduce frequency as statistical history accumulates, while retaining periodic verification and full testing after any process, origin or route change.
Was zu prüfen ist
- —ISO/IEC 17025 scope covering the parameter and matrix
- —Proficiency-testing participation and results
- —Turnaround time compatible with the claim window
- —Chain of custody from sampling to laboratory receipt
Typische Risiken
- —A result that cannot be defended because the method was outside scope
- —Results arriving after the contractual claim deadline
Häufige Fehler
- —Choosing a laboratory on price and turnaround alone
- —Testing a sample with no documented chain of custody
Häufige Fragen
How much testing is enough?
Enough to control the risks that matter for your species and market: safety parameters every lot for high-risk materials, nutrient parameters on a statistical plan, and full verification whenever origin or process changes.
Verwandte Themen
Sampling is the largest source of error in feed-ingredient testing; a valid result requires many small increments combined into a representative composite, taken to a written plan.
Every analytical result carries measurement uncertainty; contractual tolerances define how much variation is accepted before a price adjustment, rejection or claim is triggered.
A supplier's quality system — certification scheme, HACCP plan, monitoring programme, complaint handling and recall capability — predicts consistency better than any single certificate of analysis.
Erstellen Sie eine strukturierte Ausschreibung mit Parametern, Toleranzen und Prüfschritten — für Einkäufer kostenlos.
RFQ startenTechnische Parameterbezeichnungen und Analysemethoden bleiben auf Englisch, da sie in Verträgen, Zertifikaten und internationalen Normen wörtlich zitiert werden.
Fachliche Referenz. FeedMatch Group bewertet, empfiehlt und unterstützt keine Hersteller.
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