Ahlstrom Binderless Glass Microfiber Filters, Grade 131

Grade 131: 1.0 µm - Medium speed. This standard grade found in many environmental applications offers slightly more retention than Grade 111 with slightly lower filtration speed and loading capacity. Grade 131 is recommended for the collection of suspended solids in potable water and industrial wastes. Standard glass microfiber filters contain no binders or other additives that may cause interference to sensitive enzymatic or other chemical reactions. The unique characteristics of glass microfiber filters make its use particularly advantageous to laboratory filtration by enabling fast filtration of large volumes and difficult solutions without premature clogging.

• Qualitative analysis
• Laboratory analysis
• 100% pure borosilicate glass
• Rapid flow rate
• Fine particle retention
• High loading capacity
• Chemical and thermal resistance (up to 500°C)
• Long shelf life
• Brilliant white color reflecting more than 96% of visible light
• Custom cut

Grade 131 Properties:
• Retention: 1.0 µm
• Filtration speed (Herzberg): 88 sec./100 mL
• Filtration speed (Rapidity): 78 mL/min.
• Loading capacity: Very High
Image(s) are representative of the product group and not necessarily the individual product.

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Filter Size (cm): 2.1

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Filter Size (cm): 2.4

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Filter Size (cm): 2.5

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Filter Size (cm): 4.25

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Filter Size (cm): 5.5

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Filter Size (cm): 7

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Filter Size (cm): 9

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Filter Size (cm): 11

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Filter Size (cm): 12.5

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Filter Size (cm): 15