As per the ISO 9854.1 standard, the Class J – Charpy and Izod Automatic Impact Testing System specifies a distance of 395mm between the axis of support and the center of percussion. This measurement denotes the precise distance between the support point for the plastic pipe specimen and the exact location on the pendulum where the impact force is applied during testing. Adhering to this specified distance is crucial for ensuring a standardized and accurate assessment of plastic pipes’ impact resistance characteristics.

By maintaining consistency in the distance between the support and the center of percussion, manufacturers, researchers, and quality control personnel can obtain reliable test results. This will enable them to evaluate plastic pipes’ performance and durability in different applications. The prescribed distance plays a significant role in ensuring test performance comparability and reliability, enabling effective quality assurance and product evaluation.

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