Description
The paper meets both the conditioned (26.1 ± 0.5 g, SD < 0.3 g) and dried (24.7 ± 0.5 g, SD < 0.3 g) weight requirements.
- Each lot is guaranteed to meet the ASTM E 2187-09 specifications
- Simplifies testing process by removing lot suitability testing
- Just condition and use
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.
| Parameter |
Grade 2 Qualitative Filter Paper Standard Grade, Circle |
| Grade : |
Grade 2 |
| Grade Type : |
Standard |
| Diameter : |
42.5mm, 47mm, 55mm, 70mm, 90mm, 110mm, 125mm, 150mm, 185mm, 240mm, 270mm, 320mm, 385mm |
| Typical Particle Retention in Liquid1 : |
8 µm |
| Nominal Thickness : |
190µm |
| Typical water flow rate2 : |
38 ml/min |
| Nominal Basis Weight : |
97g/m² |
| Nominal Air Flow Rate : |
20 s/100 ml/in² |
| Nominal Ash Content3 : |
0.06% |
| Material : |
Cellulose |
| Typical Trace Element Levels : |
Aluminium 3.6 µg/g Antimony less than 0.5 µg/g Arsenic less than 0.5 µg/g Barium less than 0.5 µg/g Boron less than 1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead less than 0.5 µg/g Magnesium 21 µg/g Manganese less than 0.5 µg/g Mercury less than 0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g |
| Application : |
Used for monitoring specific contaminants in the atmosphere and in soil testing. |
| Format : |
Circles |
| Dimensions : |
Ø42.5mm, Ø47mm, Ø55mm, Ø70mm, Ø90mm, Ø110mm, Ø125mm, Ø150mm, Ø185mm, Ø240mm, Ø270mm, Ø320mm, Ø385mm |
- 1Particle retention rating at 98% efficiency.
- 2For 9 cm diameter
- 3Ash is determined by ignition of the cellulose filter at 900°C in air.
| Parameter |
Grade 2 Qualitative Filter Paper Standard Grade, Sheet |
| Grade : |
Grade 2 |
| Grade Type : |
Standard |
| Typical Particle Retention in Liquid1 : |
8 µm |
| Nominal Thickness : |
190µm |
| Typical water flow rate2 : |
38 ml/min |
| Nominal Basis Weight : |
97g/m² |
| Nominal Air Flow Rate : |
20 s/100 ml/in² |
| Nominal Ash Content3 : |
0.06% |
| Material : |
Cellulose |
| Typical Trace Element Levels : |
Aluminium 3.6 µg/g Antimony less than 0.5 µg/g Arsenic less than 0.5 µg/g Barium less than 0.5 µg/g Boron less than 1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead less than 0.5 µg/g Magnesium 21 µg/g Manganese less than 0.5 µg/g Mercury less than 0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g |
| Application : |
Used for monitoring specific contaminants in the atmosphere and in soil testing. |
| Format : |
Sheets |
| Dimensions : |
460 x 570 mm(18.11 x 22.45 in), 580 x 680 mm(22 x 26 in),
600 x 600 mm (23.62 x 23.62 in) |
- 1Particle retention rating at 98% efficiency.
- 2For 9 cm diameter
- 3Ash is determined by ignition of the cellulose filter at 900°C in air.
