MicroScience Quantitative Hardened Ashless grades are made of pure cellulose fibres with an alpha cellulose content of almost 100%.
The Hardened Ashless grades have an ash content of less than 0.01% and are acid washed to ensure high purity in demanding applications.
|Grade||Application||Weight||Filtration Speed||Porosity ³|
|(g/m²)||(s/100ml) ¹||(ml/min) ²||(µm)|
|MS 1HA||Very fast flow rate; for coarse and voluminous precipitates||80||75||800||42339|
|MS 2HA||Fast flow rate for typical quantitative applications; medium to coarse precipitates||80||170||350||43077|
|MS 3HA||Medium flow rate; higher retention efficiency and finer precipitates||80||260||230||42952|
|MS 4HA||Slow flow rates for fine grained precipitates; high particle retention efficiency||80||920||65||42796|
¹ Filtration Time (secs) for 100ml, prefiltered distilled water (20°C) on a filter surface of 10cm² and at a constant pressure of 5cm water gauge
² Flow rate of prefiltered, distilled water (20°C) on a 110mm disc at a constant pressure of 5cm water gauge
³ Nominal rating in liquids