Description
Advantec MFS™ No.131 Grade Medium Fine Qualitative Filter Paper, 18.5 cm diameter, 100/Pk, N0118.5CMQualitative Filter Paper Features:
¹ Flow time is the time in seconds required to filter 100 mL of distilled water at 20 °C under pressure supplied by a 10 cm water column through a 10 cm² section of filter paper² Absorption speed is the distance in cm that water will travel in an upright strip of filter paper in ten (10) minutes at 20 °C³ Wet strength is the height in cm of a water column that will rupture a 10 cm² section of filter paper
- 100% alpha cotton cellulose
- pH tolerant 0 to 12
- Temperature maximum 120 °C
- Wide selection of types and sizes
- Ash content 0.1%
- Clarify and remove preciptates
- Preparation of qualitative analysis
| Grade | No. 131 |
| Characteristics | High retenstion efficiency for fine crystalline precipitates like barium sulfate, slow flow rate, smooth surface, normal hardness |
| Diameter, cm | 18.5 |
| Weight, g/m² | 140 |
| Thickness, mm | 0.25 |
| Flow Time, sec¹ | 240 |
| Absorption Speed, cm² | 6.0 |
| Wet Strength, cm H2O³ | 19.4 |
| Retention Characteristic, µm | 3; Medium-Fine |
| Collection Efficiency, %, 0.3 µm DOP | 90 |
| Conversions | |
| Whatman | 3 or 6 |
| Schleicher & Schuell | 597 |