Filter Paper / Kertas Saring | Whatman No. 1 / 1001-090 Descriptions : Cytiva #39;s Whatman 1001-090 Grade 1 Qualitative Filter Paper, Diameter: 9cm, Pore Size: 11µm (Pack of 100) - 9.0cm Diameter Qualitative Filters - Whatman Grade 1 Qualitative Filter Paper - Covers a wide range of laboratory applications; frequently used for clarifying liquids - Areas of use include the food industry, agriculture, air pollution monitoring, and gas detection - Widely used in education for teaching simple qualitative analytical separations - Pack of 100 - Manufacturer: Cytiva - Manufacturer Part No: WHA-1001-090