- Details
- Features
- Specifications
Grade 41 environmental pollution papers are among the fastest filter papers in the Hydocs ashless range. This gravimetric filter is well suited for quantitative analysis of soil and air.
- Extremely low ash content (0.007% ash maximum)
- 20 µm nominal particle retention rating
- Fast filtration speed (Herzberg 54 s)
- Commonly used for routine air pollution analysis and soil pollution analysis
|
Grade |
Grade 41 |
|
Format |
Circles |
|
Type |
Ashless |
|
Typical Particle Retention in Liquid8 |
20 µm |
|
Nominal thickness |
215 µm |
|
Typical water flow rate at 45 psi (3.1 bar) |
254 ml/min |
|
Nominal basis weight |
85 g/m² |
|
Nominal air flow rate |
4 s/100 mL/in² |
|
Nominal Ash Content |
0.007% |
|
Material |
High-quality cotton linters |
|
Alpha Cellulose Content Min. |
≥98% |
|
Typical Trace Element Levels |
Aluminium 2.5 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 8.3 µg/g Chromium 1.5 µg/g Copper 2 µg/g Iron 12 µg/g Lead <0.5 µg/g Magnesium 4 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 2.3 µg/g Silicon 6.2 µg/g Sodium 16.8 µg/g Zinc 64.5 µg/g |
|
Application |
Designed for gravimetric analysis and the preparation of samples for instrumental analysis. For analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides). Also used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates. |
|
Catalogue No |
Diameter |
Qty |
|
HY041-42 |
42.5 mm |
100/pk |
|
HY041-47 |
47 mm |
100/pk |
|
HY041-50 |
50 mm |
100/pk |
|
HY041-55 |
55 mm |
100/pk |
|
HY041-60 |
60 mm |
100/pk |
|
HY041-70 |
70 mm |
100/pk |
|
HY041-90 |
90 mm |
100/pk |
|
HY041-110 |
110 mm |
100/pk |
|
HY041-125 |
125 mm |
100/pk |
|
HY041-150 |
150 mm |
100/pk |
|
HY041-185 |
185 mm |
100/pk |
|
HY041-240 |
240 mm |
100/pk |