Ahlstrom Binderless Glass Microfiber Filters, Grade 121

Grade 121: 1.0 µm - Medium speed. This very thick grade offers finer particle retention than Grade 111 with high wet-strength and loading capacity. Grade 121 is recommended for the clarification of liquid suspensions loaded with fine particulates. 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 121 Properties:
• Retention: 1.0 µm
• Filtration speed (Herzberg): 143 sec./100 mL
• Filtration speed (Rapidity): 48 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): 4.7

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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): 14.2

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Filter Size (cm): 15