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Whatman
Whatman Qualitative Filter Papers, Grade 1 circles, 55 mm, 100/pk
Whatman Qualitative Filter Papers, Grade 1 circles, 55 mm, 100/pk
$23.95
- MFR:
- 1001-055
- Medex SKU:
- WTM-1001-055
- Packing Info:
- 100/Pk
- Usually Ships:
- 1 - 2 Business Days
- Freight Quote Button:
- False
Description
Whatman Qualitative Filter Papers:
- The most widely used filter paper for routine applications with medium retention and flow rate.
- Extended range of sizes includes 10 to 500 mm diameter circles and 460 x 570 mm sheets.
- This filter is also available in the FilterCup, this is a convenient, disposable 70 mm filter funnel with a 250 ml capacity molded from polypropylene with an integral, heat bonded filter (catalog number 1600-001).
- 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.
- 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.
Typical Properties:
- Description: Medium Flow.
- Particle Retention in Liquid (µm): 11.
- Filtration Speed (approx.) herzberg (s): 150.
- Air Flow (s/100 ml/in2): 10.5.
- Typical Thickness (µm): 180.
- Basis Weight (g/m2): 88.