Description
Intermediate in speed and retention between Grades 1 and 4. These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not introduce any significant impurities into the filtrate. The resins do, however, contain nitrogen so these grades should not be used in Kjeldahl estimations, etc. Some wet strengthened grades are available in folded (prepleated) forms.
Specifications:
• Grade: Grade 93
• Grade Type: Wet Strengthened
• Material: Cellulose
• Nominal air flow rate: 7 s/100 ml/in
• Nominal basis weight: 65 g/m
• Nominal thickness: 145 µm
• Properties: Medium
• Typical Particle Retention in Liquid†: 10 µm
• Typical water flow rate††: 194 ml/min
†Particle retention rating at 98% efficiency.
††For 9 cm diameter
†††U.S. Sales Only
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