ASTM D3574 Flexible Cellular Materials – Slab, Bonded, and Molded Urethane Foams

The ASTM D3574 contains several test methods applied to the slab, bonded, and molded flexible cellular products known as urethane foams. Urethane foam is an expanded cellular product that interacts with active hydrogen compounds, water, and isocyanates. The values stated in SI units are regarded as standard.

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Scope:

ASTM D3574 provides information on various test methods made on slab, bonded, and molded urethane foams that can control manufacturing processes. This method is crucial for obtaining data for research and development, quality control, acceptance and rejection under specifications, and other purposes. The data obtained by these test methods apply to the materials under conditions of the specific test.

Procedure:

In ASTM D3574, all tests are intended to be carried out by the methods given in Sections 7-23.

Tests Methods	Sections
Test A (Density Test)	9 – 15
Test B₁ (Indentation Force Deflection Test)	16 – 22
Test B₂ (Indentation Residual Gauge Length)	23 – 29
Test C (Compression Force Deflection Test)	30 – 36
Test D (Constant Deflection Compression Set Test)	37 – 44
Test E (Tensile Test)	45 – 52
Test F (Tear Resistance Test)	53 – 60
Test G (Air Flow Test)	61 – 67
Test H Resilience (Ball Rebound) Test	68 – 75
Test I₁ (Static Force Loss Test at Constant Deflection)	77 – 85
Test I₂ (Dynamic Fatigue Test by Roller Shear at Constant Force)	86 – 94
Test I₃ (Dynamic Fatigue Test by Constant Force Pounding)	95 – 103
Test I₄ (Dynamic Fatigue Test for Carpet Cushion)	104 – 112
Test I₅ Dynamic Fatigue Test by Constant Deflection Pounding	113 – 121
Aging Test J (Steam Autoclave Aging)	122 – 127
Aging Test K (Dry Heat Aging)	128 – 133
Aging Test L (Wet Heat Aging)	134 – 139
Test M (Recovery Time)	140 – 145
Test N (Hysteresis Loss)	146 – 150

Specimen size:

In ASTM D3574, the specimen should have a thickness measured up to 25 mm using an electronic display gauge with a minimum foot area of 650 mm2. Hold the pressure of the gauge foot to a maximum of 800 Pa.

Results

Results are reported within the individual test methods called out in these test methods.

Conclusion:

ASTM D3574 provides information on various test methods made on slab, bonded, and molded urethane foams that can control manufacturing processes.

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