河北飞凫标品科技有限公司
编号/Number | 中文名称 | Name | 规格/Units | 特性量/Properties |
GBW 13914 | 压汞法介孔 Al2O3总孔容和孔径标准物质 | CRMs for total pore volume and pore diameter of mesoporous Al2O3 formercury porosimetry | 10g | 总孔容(total pore volume)0.413cm3/g、不确定度 (Uncertainty )0.026cm3/g (k=3),平均孔径 (average pore diameter)14.8nm、不确定度(Uncertainty)1.2nm (k=3),可几孔径 (porediameter)11.7nm、不确定度 (Uncertainty)0.7nm (k=3),中位孔径(median pore diameter)14.0nm、不确定度 (Uncertainty)0.6nm (k=3) |