ILD Test of Polyurethane Cushions and Pillows

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ILD Test of Polyurethane Cushions and Pillows

The firmness of a polyurethane foam cushion and pillows is measured by performing a test called indentation load deflection, or ILD. To the manufacturer and final user, it is one of the more important quality tests related to the firmness of the end product. A wide variety of test machines are available for a range of different sample sizes.