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ASTM D 3574测试——

 

ASTM D 3574:2005—海绵物理性能测试

Test item

No. of specimens

Figures of test result

Test ADensity 密度测试( kg/m3

3pcs 100*100*100mm

Calculate the density in kilograms per cubic metre

Test B1IFD 硬度 N

3pcs 380*380*100mm

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

Test B2IFD-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 CCompression 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 DConstant 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 ETensile/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 dividing the maximum breaking force by the original cross-sectional area of the specimen

Test FTear 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 %

 


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