Filter Papers, Qualitative Standard Grade 4 (Whatman)
Grade 4: 20-25 µm with excellent retention of coarse particles and gelatinous precipitates. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
| Item No. | Alt. Part No. | Mfr. Item No. | Diameter | Unit of Measure | Your Cost | Purchase |
|---|---|---|---|---|---|---|
|
Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-35
|
EF8352B | 1004-055 | 5.5 cm | Pack of 100 |
$16.92
|
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Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-36
|
EF8352C | 1004-070 | 7 cm | Pack of 100 |
$16.92
|
|
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Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-37
|
EF8352D | 1004-090 | 9 cm | Pack of 100 |
$19.54
|
|
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Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-38
|
EF8352E | 1004-110 | 11 cm | Pack of 100 |
$24.99
|
|
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Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-39
|
EF8352F | 1004-125 | 12.5 cm | Pack of 100 |
$31.84
|
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Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-40
|
EF8352G | 1004-150 | 15 cm | Pack of 100 |
$40.73
|