Whatman 1001-929 Quantitative Filter Paper Sheet, 11 Micron, 10.5 s/100mL/sq inch Flow Rate, Grade 1, 600mm Length x 600mm Width (Pack of 100)

This Whatman 60 x 60cm, grade 1, cellulose filter paper sheet is the most widely used filter paper for routine applications with medium retention (11µm) and flow rate. Traditionally the grade is used in qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate. In agriculture, it is used for soil analysis and seed testing procedures. In the food industry, Grade 1 is used for numerous routine techniques to separate solid foodstuffs from associated liquid or extracting liquid and is widely used in education for teaching simple qualitative analytical separations. In air pollution monitoring, using circles or rolls, atmospheric dust is collected from airflow and the stain-intensity measured photometrically. For gas detection, the paper is impregnated with a chromogenic reagent and color formation quantified by optical reflectance. Retention: 11µm. Size: 60 x 60cm Sheets. 100/Pack. Whatman #: 1001-929.