The test materials are corrugated fibreboards, comprising fluted paper glued between flat sheets. Samples should represent the material being tested and be free of defects or irregularities.
A dead-weight micrometer with specific dimensions and pressure (20 kPa ± 0.5 kPa) measures the board thickness. The test piece must fit within a 10 cm² area, ensuring accurate readings.
Thickness readings provide insights into the board’s quality, with results used for quality assurance or design verification.
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