WHATMAN Grade 113 Wet Strengthened grades Filter Papers

CYTIVA
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.
• Typical properties

Description Creped
Typical particle retention in liquid (µm)¹ 30
Filtration speed (approx) herzberg (s) -
Nominal air flow (s/100 mL/in²) 2
Nominal thickness (µm) 420
Nominal basis weight (g/m²) 125
Typical water flow rate (mL/min)² 774

• Ordering information – wet strengthened grades

Dimensions (mm) Catalog number Quantity/pack
90 1113-090 100
110 1113-110 100
125 1113-125 100
150 1113-150 100
185 1113-185 100
240 1113-240 100
320 1113-320 100
500 1113-500 100

• Ordering information – Filter Sheets

Dimensions (mm) Catalog number Quantity/pack
460 mm × 570 mm 1113-917 100

• Ordering information – filter papers – folded (prepleated) grades

Dimensions (mm) Catalog number Quantity/pack
125 1213-125 100
150 1213-150 100
185 1213-185 100
240 1213-240 100
270 1213-270 100
320 1213-320 100
500 1213-500 100