东莞安规检测技术有限公司进口UL防火棉供应，目前销量已经位居榜首！ UL1598嵌入式灯具用温升测试棉-防火棉供应价、防火棉金Pai供应商 防火棉，温升测试棉，UL防火棉，UL1598防火棉 Thermal insulation of the loose-fill type rated thermal resistance of R3.75 according to ASTM C 739.隔热棉R值为3.75.DensityThe maximum density anticipated after long-term settling of dry applications was determined by following specification: ASTM C739: 1.6lb/ft3 (25.6kg/m3) the specified test conditons.密度：根据ASTMC 739: 1.6lb/ft3 (25.6kg/m3) 其中，标准要求如下：19.16.1 Thermal insulation of the loose-fill type shall be conditioned to the density specified by the insulation manufacturer to obtain a required rated thermal resistance of Rsi 0.56 to 0.678 (R3.2 to R3.85).19.16.2 Thermal insulation shall be conditioned, if required, by a blowing or vacuum machine before it is placed around the test luminaire. Density shall be verified by placing insulation into a box of known volume ａnd weight, ａnd then weighing the filled box. The difference in weight between the empty ａnd full box, divided by the volume, shall be the insulation density.
