Filter Papers
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Filter Papers, Filter Papers & Thimbles
Filter Papers, Grade 1
Grade 1: 9 μm,Grade 1 filter paper is the most widely used filter paper for routine applications with medium retention and flow rate.
This grade covers a wide range of laboratory applications and is frequently used for clarifying liquids. Traditionally the grade is used in qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate.
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. -
Filter Papers, Filter Papers & Thimbles
Filter Papers, Grade 2
Grade 2: 9 μm,Grade 2 filter paper is slightly more retentive and having more absorbing power than Grade 1 with a corresponding increase in filtration time. In addition to general filtrations, the extra absorbency is utilized, for example, to hold soil nutrient in plant growth trials. Also used for monitoring specific contaminants in the atmosphere and in soil testing.
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Filter Papers, Filter Papers & Thimbles
Filter Papers, Grade 3
Grade 3: 5 μm,Grade 3 filter paper is almost double the thickness of Grade 1 with still finer particle retention and excellent loading capacity; more precipitate can be held without clogging. The extra thickness gives increased wet strength and makes this grade highly suitable for use in Buchner funnels. The high absorbency is particularly valuable when the paper is used as a sample carrier.
