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Full load temperature field retest process verification and risk control：For loaded retesting, document fixture mass, tray layers and sample spacing and examine heating delay at the load centre. Maximum temperature class is not a sample recipe. Check the limits of materials, vapours, fixtures, seals and sensors individually.

Key points for selecting equipment for full-load temperature field retesting：For loaded retesting, document fixture mass, tray layers and sample spacing and examine heating delay at the load centre. Maximum temperature class is not a sample recipe. Check the limits of materials, vapours, fixtures, seals and sensors individually.

Large cavity hot air circulation verification process verification and risk control：For large-chamber circulation, examine door-side, corner and return-air positions and check load blockage of airflow. Verify that the actual load does not block circulation paths; for thermal-shock-sensitive materials also check ramp rates and temperature gradients within the sample.

Key points for selecting large cavity hot air circulation verification equipment：For large-chamber circulation, examine door-side, corner and return-air positions and check load blockage of airflow. Verify that the actual load does not block circulation paths; for thermal-shock-sensitive materials also check ramp rates and temperature gradients within the sample.

Heating curve stability confirmation process verification and risk control：For ramp stability, check overshoot, differences between starts and sample response rather than examining only the hold curve. Define control accuracy and temperature uniformity separately. Controller-sensor fluctuation cannot represent the difference between locations in the usable workspace.

Heating curve stability confirmation equipment selection key points：For ramp stability, check overshoot, differences between starts and sample response rather than examining only the hold curve. Define control accuracy and temperature uniformity separately. Controller-sensor fluctuation cannot represent the difference between locations in the usable workspace.

Batch sample temperature difference control process verification and risk control：For batch temperature spread, also record material outcomes at each location to see whether differences track drying or curing variation. Place sensors for the thermal load of parts, fixtures and trays; record ramp overshoot, stable hold and cooling. Use an empty-chamber curve only as a baseline.

Key points for selecting temperature difference control equipment for batch samples：For batch temperature spread, also record material outcomes at each location to see whether differences track drying or curing variation. Place sensors for the thermal load of parts, fixtures and trays; record ramp overshoot, stable hold and cooling. Use an empty-chamber curve only as a baseline.