The ISO 2781 test method involves measuring the mass of a test specimen and its volume. The mass of the specimen is determined using a balance, while the volume is determined by either measuring the displacement of a liquid or by measuring the dimensions of the specimen and calculating the volume using geometric formulas.

The ISO 2781 standard outlines the specific test conditions and requirements for performing the density test, including specific test equipment and procedures for specimen preparation, handling, and testing. The test specimen should be a representative material sample, free from air bubbles or voids, and have a known weight. You also need to weigh the specimen on a balance of suitable accuracy and record the weight. To calculate the specimen’s density, divide its weight by its volume. The density is usually expressed in grams per cubic centimetre (g/cm3) or kilograms per cubic meter (kg/m3).

NextGen’s HDA 120 – Hardness and Density Automation Test System complies with ISO 2781 Standard.

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