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  • ASTM D 3574:2005—海棉物理性能測試

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  • 對應(yīng)法規(guī):ASTM D 3574:2005
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  • ASTM D 3574:2005—海棉物理性能測試 Test item (測試項(xiàng)目) No. of specimens (試樣尺寸) Figures of test result (數(shù)據(jù)的測試結(jié)果) Test A—Density 密度測試( 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*實(shí)際厚度 mm(厚度大于50mm) The thickness after 60±3s at 4.5N,110N and 220N Test C—Compression force deflection test 壓縮系數(shù) 3pcs 50*50*25mm Compress the specimen 50% of the thickness at 50mm/min and determine the final force after 60±3s 在壓縮50%的情況下保持1分鐘,看讀數(shù)的值 Test D—Constant deflection compression set test 壓縮永久變形(%) 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 在以上壓縮比例任選一個(gè),溫度70度,濕度6%,放置22小時(shí),看海綿的恢復(fù)情況 Test E—Tensile/Elongation test拉伸強(qiáng)度(kgf/cm2)/伸長率(%) 3pcs 25.4*139.7*12.5mm 見FIG. 1 At 500mm/min, Calculate the tensile strength by dividing the maximum breaking force by the original cross-sectional area of the specimen Test F—Tear resistance test 撕裂強(qiáng)度(N/m) 3pcs 152.4*25.4*25.4mm 見FIG. 2 At 500mm/min tear strength in newtons per meter Test I1—Fatigue test :static force loss test at constant deflection 靜態(tài)疲勞測試 3pcs 380*380*實(shí)際厚度mm(厚度大于50mm) Percentage loss of thickness and the percentage loss of 25 and 65 % IFD if the thickness loss is less than 10 % 如果硬度損失小于10%,應(yīng)該考查25%和65%的損失的百分比
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