中文 (CN)
ZH
Ashless filters (ash content approx. 0.004%), recommended for quantitative analysis, routine gravimetric tests and sample preparation for instrumental analysis.
These filter papers are perfectly qualified for food control, beverage analysis and environmental monitoring.
These filters are available as filter circles with the following sizes (in mm):
12,5 – 40,5 – 47 – 55 – 70 – 90 – 110 – 125 – 150 – 185 – 240.
Other sizes, sheets and special cuts are available on request.
| Grade | Properties | Filtration Herzberg [s] | Retention rate* [μm] | Weight [gsm] | Thickness[mm] |
|---|---|---|---|---|---|
| 589/1 – black | fast | 50 | 12 – 25 | 79 | 0,19 |
| 589/2 – white | medium fast | 140 | 4 – 12 | 85 | 0,18 |
| 589/4 – yellow | medium fast, Low-fat | 170 | 4 – 7 | 81 | 0,17 |
| 589/5 – red | medium fast | 450 | 2 – 4 | 84 | 0,17 |
| 589/6 – green | slow, thinn | 900 | 2 | 74 | 0,15 |
| 589/3 – blue | slow | 750 ** | < 2 | 84 | 0,16 |
* Approximate values ** Measured with 100 mm water column instead of 50mm
We use cookies. Some of them are necessary to make the website usable. Others help us display information that is relevant and engaging to you. As data protection is important to us, we ask you to decide on the scope of use. You can either accept all cookies or choose your individual settings. Thanks and enjoy our website!