Test item

No. of specimens

Figures of test result

Test A—Density密度测试（kg/m3）

3pcs 100*100* 100mm

Calculate the density in kilograms per cubic metre

Test B1—IFD硬度（N）

3pcs 380*380*100mm

The force in newtons required for 25% and 65% indentations

Test B2—IFD-specified force

指定力下的硬度(N)

3pcs 380*380*实际厚度mm

The thickness after 60±3s at 4.5N,110N and 220N

Test C—Compression force deflection test压缩系数

3pcs 50*50*25mm

Compress the specimen 50% of the thickness at 50mm/min and determine the final force after 60±3s

Test D—Constant deflection compression set test压缩永久变形（%）

3pcs 50*50*25mm

Place the specimen and deflect it to either 50% 75% or 90% of its thickness, at air oven 70±2℃and 6% RH. For 22

Test E—Tensile/Elongation test拉伸强度(kgf/cm2)/伸长率(%)

3pcs 25.4*139.7*12.5mm

At 500mm/min, Calculate the tensile strength by piding the maximum breaking force by the original cross-sectional area of the specimen

Test F—Tear resistance test

撕裂强度(N/m)

3pcs 152.4*25.4*25.4mm

At 500mm/min tear strength in newtons per meter

Test I1—Fatigue test :static force loss test at constant deflection静态疲劳测试

3pcs 380*380*实际厚度mm

Percentage loss of thickness and the percentage loss

of 25 and 65 % IFD if the thickness loss is less than 10 %