Filtry jakościowe fałdowane Grade 2V
W porównaniu z filtrami składanymi na cztery, fałdowana bibuła filtracyjna Grade 2V posiada dodatkową powierzchnię, dzięki czemu filtr charakteryzuje się większą ładownością i krótszym czasem filtracji.
Compared with quadrant-folded filters, Whatman™ Grade 2V pre-folded filter paper exposes extra surface area, which enables a higher loading capacity and shorter filtration time.

• Medium flow and nominal particle retention rating of 8 µm
• Herzberg filtration speed of 240 s
• Fluted (pre-pleated) for easy use with conical filter funnels
• Can be used for soil analysis or general filtration

We offer a broad range of Whatman™ qualitative filter papers, including standard filter grades and wet-strengthened grades.

Pre-folded filters for seed and soil testing
Grade 2V pre-folded filter sheets are suitable for extracting samples from soil to support contaminant testing in the presence of weakly acidic solutions.
Filtry jakościowe fałdowane Grade 2V
Filtry jakościowe fałdowane Grade 2V
Grade Grade 2V 
Grade Type Folded (Prepleated) 
Typical Particle Retention in Liquid 8 µm  
Nominal Thickness 190 µm
Typical water flow rate 38 ml/min 
Nominal Basis Weight 97 g/m2
Material Cellulose 
Typical Trace Element Levels Aluminium 3.6 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead <0.5 µg/g Magnesium 21 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g 
Supporting Analysis Qualitative 
Product Product Name Diameter
1202-125 Grade 2V Pre-Folded Filter Paper for Qualitative Analysis; 125 mm circle (100 pcs) 125 mm
1202-150 Grade 2V Pre-Folded Filter Paper for Qualitative Analysis; 150 mm circle (100 pcs) 150 mm
1202-185 Grade 2V Pre-Folded Filter Paper for Qualitative Analysis; 185 mm circle (100 pcs) 185 mm
1202-240 Grade 2V Pre-Folded Filter Paper for Qualitative Analysis; 240 mm circle (100 pcs) 240 mm
1202-270 Grade 2V Pre-Folded Filter Paper for Qualitative Analysis; 270 mm circle (100 pcs) 270 mm
1202-320 Grade 2V Pre-Folded Filter Paper for Qualitative Analysis; 320 mm circle (100 pcs) 320 mm
1202-385 Grade 2V Pre-Folded Filter Paper for Qualitative Analysis; 385 mm circle (100 pcs) 385 mm
1202-400 Grade 2V Pre-Folded Filter Paper for Qualitative Analysis; 400 mm circle (100 pcs) 400 mm
1202-500 Grade 2V Pre-Folded Filter Paper for Qualitative Analysis; 500 mm circle (100 pcs) 500 mm