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.
Applicable Testing Standards
Recommended Test Machine
Forces up to 10 kN (2,250 lbf)
Low force tabletop systems
Modular series of five frame options with adjustable test space
Affordable testing option for tension, compression, bend, peel and much more
Force range of 5 kN to 600 kN (1,125 lbf to 135,000 lbf)
Adjustable test space
The most popular choice for static tension and compression tests
These dual column testers are available in both tabletop and floor standing models
Recommended Testing Accessories
Designed in accordance to ASTM D3574
Platen diameter of 200 mm (8 in)
Articulating platen adjusts to specimen geometry