Grade 2 Qualitative Filter Paper, Standard Grade

A standard grade filter used for monitoring specific contaminants in the atmosphere and in soil testing.

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 2: 8 µm

Slightly more retentive than Grade 1 with a corresponding increase in filtration time (i.e., slightly slower filtration speed). More absorbent than Grade 1. In addition to general filtration in the 8 µm particle size range, the extra absorbency is utilized, for example, to hold soil nutrient in plant growth trials. Also used for monitoring specific contaminants in the atmosphere and in soil testing. Also available prepleated as Grade 2V.

Specifications:

• Complete Pack size: 100 Pieces
• Grade  Grade: 2
• Grade Type: Standard
• Typical Particle Retention in Liquid: 8 µm
• Typical Water Flow Rate (ml/min) for 9cm diameter: 38
• Nominal Thickness: 190 µm
• Nominal Basis Weight: 97 g/m²
• Nominal Air Flow Rate: 20 s/100 ml/in²
• Nominal Ash Content: 0.06%
• 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

Ordering Information: