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Thomas®

Grade 934-Ah Glass Microfiber Filters

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Depth filtration glass micro fiber

934-AH® - Fine porosity, fast flow rate, with a 1.5 µm size particle retention. This material is the standard for volatile suspended solids content and related measurements (Standard Methods 2540D and EPA Method 160.2). Also widely used in cell harvesting applications and RIA scintillation counting. Binderless borosilicate glass microfiber enables use up to 550°C.

  • Particle Retention: 1.50 µm
  • Filtration Speed: 47 seconds
  • Thickness: 0.43 mm
  • Basis Weight: 64 g/m2

Depth filtration categorizes filter media that traps particulate within the random matrix of fibers found within the thickness of the media. The efficiency rating of the filter is characteristic of the complex pore structure that develops as the fibers overlap. The fibrous material within the filter is commonly glass micro fiber or polypropylene. In depth filters such as glass micro fiber, the purity of the filter is dictated by the presence of, if any, binder material that acts as a strengthening agent and aids in holding the fibers together.

Because of the characteristically high flow rates of depth filters, they are generally used in applications such as single and multi-process removal of sediment and course particulate. Glass micro fiber filters are available without binders, making the inertmatrix an ideal medium to entra-sediment for further analysis and counting. Also, depth filtration media is commonly used as pre-filtration prior to surface filtration substrates such as membranes.

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Thomas No.
1229B11
Description
Filters, 934-Ah, 2.1 cm
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$0.00
Thomas No.
1229B12
Description
Filters, 934-Ah, 2.4 cm
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$0.00
Thomas No.
1229B13
Description
Filters, 934-Ah, 2.5 cm
list price/quantitytotal
$0.00
Thomas No.
1229B14
Description
Filters, 934-Ah, 3.5 cm
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$0.00
Thomas No.
1229B15
Description
Filters, 934-Ah, 3.7 cm
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$0.00
Thomas No.
1229B16
Description
Filters, 934-Ah, 4.25 cm
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$0.00
Thomas No.
1229B17
Description
Filters, 934-Ah, 4.7 cm
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$0.00
Thomas No.
1229B18
Description
Filters, 934-Ah, 5.5 cm
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Thomas No.
1229B19
Description
Filters, 934-Ah, 7.0 cm
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$0.00
Thomas No.
1229B20
Description
Filters, 934-Ah, 9.0 cm
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$0.00
Thomas No.
1229B24
Description
Filters, 934-Ah, 8 X 10 Inch Sheets
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$0.00
Thomas No.
1229B28
Description
Filters, 934-Ah, 8 X 10 Inch Sheets
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$0.00
Thomas No.
1229B21
Description
Filters, 934-Ah, 11.0 cm
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Thomas No.
1229B25
Description
Filters, 934-Ah, 11.0 cm
list price/quantitytotal
$0.00
Thomas No.
1229B22
Description
Filters, 934-Ah, 12.5 cm
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$0.00
Thomas No.
1229B26
Description
Filters, 934-Ah, 12.5 cm
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$0.00
Thomas No.
1229B23
Description
Filters, 934-Ah, 15.0 cm
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Thomas No.
1229B27
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Filters, 934-Ah, 15.0 cm
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