Norma ISO 534

Test Materials: ISO 534 applies to paper and board samples, which must be cut to the specified dimensions for accurate thickness measurement. The materials used must be flat, free of moisture, and uniform in composition to ensure reliable results.
Test Process: ISO 534 specifies two methods for thickness measurement: one using a micrometer and the other using a digital caliper. The paper or board is placed between the measuring surfaces, ensuring consistent pressure. Measurements are taken at multiple points across the sample to account for variations.
Test Result Interpretation: The test results are expressed in micrometers (µm) or mils, indicating the thickness of the material. If using the micrometer method, the result represents the average thickness, and variations in thickness should be minimal. Any significant deviations may indicate defects in the material.