ASTM D3574 (D 3574) applies to slab, bonded, and molded flexible cellular urethane foams. There are many tests in this specification including tests for density, ball rebound, airflow, etc. ADMET manufacturers systems that perform the following common mechanical tests in the specification:
Test B1 - Indentation Force Deflection Test (IFD) - Specified Deflection (VIDEO BELOW)
Test B2 - Indentation Force Deflection Test (IFD) - Specified Force
Test C - Compression Force Deflection (CFD)
Test E - Tension Test (VIDEO BELOW)
Test F - Tear Resistance Test (VIDEO BELOW)
Test I3 - Dynamic Fatigue Test by Constant Force Pounding (VIDEO BELOW)
Test M - Revovery Time of Viscoelastic (Memory) Foam (VIDEO BELOW)
Test X6 - Measuring the Hysteresis Loss of Foams
ADMET's most common test system for ASTM D3574 and ISO 2439 is the eXpert 5600F. It is available in three versions: fully automatic software control (MTESTQuattro), semi-automatic touchpanel control (eP2), and hand crank manual machine with digital position and force readouts. The eXpert 5900F is similar to the eXpert 5600F although it has a fatigue actuator so it can perform the constant force pounding tests along with fast (non-spec) viscoelastic recovery tests. If you only need to perform the Tensile strength, Elongation, and Tear tests then we recommend our eXpert 7601 universal testing system.
With the exception of the Constant Force Pounding test, all of these tests are performed on a universal testing machine, often times referred to as a tensile testing machine. The machine control software must be capable of segmented machine control testing profiles. Not all testing machines will perform these tests correctly; All ADMET testing machines equipped with MTESTQuattro software controller come preloaded with all of these test methods.
Other equipment needed to perform the tests described above are:
- Tests B1, B2, C, M, X6
- Circular 203mm dia. compression platen with a swivel joint
- 400mm x 400mm lower compression platen with 6.5mm holes on 20mm centers
- Tests E, F
- Manual or pneumatic vise grips
- Test I3
- 400mm x 400mm lower compression platen described above
- 250 mm dia. compression platen with 25mm radius on underside
That is the end of the equipment requirements. Below are video of the following tests: IFD, Tear, Tensile, Constant Force Pounding, and Recovery Tests.
Indentation Force Deflection Test - ADMET eXpert 5600F Foam Testing System
Constant Force Pounding Test - ADMET eXpert 5900F Fatigue Testing System
Memory Foam Recovery Time Test - ADMET eXpert 5900F Fatigue Testing System
Foam Tensile Strength Test - ADMET eXpert 7601
Foam Tear Resistance Test - ADMET eXpert 7601