The specified specimen dimensions for the Class J – Charpy and Izod Automatic Impact Testing System, as per ISO 179 and GB/T 1043, are 80mm in length (L), 10mm in width (W), and 4mm in height (H). Based on these dimensions, it can be concluded that the specimen should have a rectangular shape with a length of 80mm, a width of 10mm, and a height of 4mm, all of which indicate a rectangular shape.

Contrary to ASTM D6110, the specimen dimensions are 127mm long, 12.7mm wide, and 3mm to 12.7mm high. As a result, specimens can vary in height within the range of 3mm to 12.7mm, while maintaining the specified length and width.

It is crucial to adhere to the specified specimen dimensions to ensure accurate and consistent testing results. By following the prescribed dimensions according to ISO 179, GB/T 1043, and ASTM D6110, users can conduct impact testing in accordance with the respective standards, enabling reliable comparisons and compliance with international testing requirements.

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