Grade 4 Qualitative Filter Papers
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Brand: WHATMAN
Product Details: A standard grade filter used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
Grade 4: 25 µm
Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. Very useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
Variant and Specifications
PRODUCT | PRODUCT NAME | FORMAT | DIMENSIONS | PACKING |
1004-027 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 27 mm | Circles | Ø 27 mm | 400pcs |
1004-042 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 42.5 mm | Circles | Ø 42.5 mm | 100pcs |
1004-047 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 47 mm | Circles | Ø 47 mm | 100pcs |
1004-050 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 50 mm | Circles | Ø 50 mm | 100pcs |
1004-055 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 55 mm | Circles | Ø 55 mm | 100pcs |
1004-070 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 70 mm | Circles | Ø 70 mm | 100pcs |
1004-090 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 90 mm | Circles | Ø 90 mm | 100pcs |
1004-110 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 110 mm | Circles | Ø 110 mm | 100pcs |
1004-125 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 125 mm | Circles | Ø 125 mm | 100pcs |
1004-150 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 150 mm | Circles | Ø 150 mm | 100pcs |
1004-185 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 185 mm | Circles | Ø 185 mm | 100pcs |
1004-240 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 240 mm | Circles | Ø 240 mm | 100pcs |
1004-270 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 270 mm | Circles | Ø 270 mm | 100pcs |
1004-320 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 320 mm | Circles | Ø 320 mm | 100pcs |
1004-400 | Grade 4 Qualitative Filter Paper Standard Grade, circle, 400 mm | Circles | Ø 400 mm | 100pcs |
1004-648 | Grade 4 Qualitative Filter Paper Standard Grade, roll, 38 x 114 mm | Roll | 38 x 114 mm | 1roll |
1004-917 | Grade 4 Qualitative Filter Paper Standard Grade, sheet, 460 × 570 mm | Sheets | 460 x 570 mm (18.11 x 22.45 in) | 100pcs |