ASTM E4

Test Materials: ASTM E4 specifies the use of calibration weights or standard test specimens as materials for verifying the accuracy of load-testing machines. These materials must be traceable to national standards to ensure reliability and consistency during testing.

Test Process: The test process involves applying known loads to the testing machine and measuring the resulting output. The machine’s response is recorded and compared to the expected values. This process should be conducted under controlled conditions to minimize variability, and proper calibration equipment must be used.

Test Result Interpretation: Results from ASTM E4 testing are interpreted by analyzing the measured output against the known applied loads. Discrepancies are assessed to determine the accuracy of the testing machine, ensuring it meets required performance specifications for future testing applications.