QUANTITATIVE FILTER PAPERS GRADE NO. 4A HARDENED ASHLESS, 18.5 CM
- Brand: Advantec
- SKU: 121-0270
- County of Origin: UNITED STATES
- Product Code: 1411185
- Availability: In Stock
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Quantitative filter paper for gravimetric analysis or environmental monitoring:
- Made of Highest quality alpha cotton cellulose; "Ashless" (Ash content 0.01%)
- Acid washed and rinsed with ultrapure water to neutralize
Specifications
| Grade | Weight (g/m2) | Thickness (mm) | Flow Time* (sec) | Absorption speed* (cm) | Nominal Rating (µm) | Wet Strength (kPa) |
| No. 4A Hardened Ashless | 96 | 0.12 | 915 | 4.0 | 1 (Very Fine) | 52 |
Retains fine particles, slow flow rate. High wet strength, suitable for use under high pressure, with good pH and chemical resistance.