Magnet testing services provide third-party measurement and characterization of permanent magnets and magnetic assemblies for manufacturers, OEMs, and research organizations that do not maintain in-house testing capabilities. Independent testing is also used to verify supplier material certifications, investigate field failures, or support regulatory submissions requiring traceable measurement data. Services range from basic pull force and surface field measurements to full magnetic property characterization including BH curve analysis, temperature coefficient measurement, and irreversible loss testing.

What to Look for in a Magnet Testing Service

• Accreditation and traceability — For quality-critical and regulatory applications, look for laboratories accredited under ISO/IEC 17025, which demonstrates measurement competence and traceability to national measurement standards.
• Range of measurements offered — Confirm the lab can perform all measurements your application requires — surface field, flux, pull force, BH curve, temperature performance, or specialized measurements — rather than assuming broad capability.
• Turnaround time — Testing turnaround can range from same-day for simple measurements to several weeks for comprehensive characterization. Clarify your timeline requirements upfront and ask about rush service availability.
• Sample handling and return — Confirm whether tested samples are returned, and under what conditions. Some destructive tests or high-field demagnetization tests may alter the magnet permanently.
• Reporting format — Test reports should include measurement methodology, instrument identification, calibration status, environmental conditions, and clear presentation of results. Confirm the report format meets your documentation requirements.