ASTM D374

Test Materials: ISO 459 specifies the use of paper and paperboard samples as test materials. These samples should be cut to standardized dimensions and represent the product batch accurately. It’s crucial that the samples are free from defects, ensuring reliable measurement results.

Test Process: The testing process involves placing the sample between the measuring plates of a calibrated thickness gauge. A specified pressure is applied to achieve uniform contact. Multiple measurements are taken at different points to calculate an average thickness, following the precise protocols outlined in the standard.

Test Result Interpretation: Results from ISO 459 are reported as the average thickness in micrometers or millimeters. This data is vital for assessing material quality and consistency. Variations from specified tolerances can indicate production inconsistencies, and comparing results to industry standards helps determine the suitability of the material for its intended application.