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We can only ship non-hazardous products to Rest of World
Compare all Pack Sizes
Unfortunately, we are not currently accepting orders for Northern Ireland, Jersey and Guernsey.
We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.
AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE
Grade 304: is a medium-filtering qualitative paper suitable for a broad range of laboratory tasks. It is ideal for clarifying liquids and rapidly filtering coarser precipitates such as lead sulfate, lead chromate, calcium oxalate, calcium carbonate, aluminium phosphate, barium carbonate, and beryllium hydroxide. This grade is also used in soil analysis, seed testing, air pollution monitoring (for collecting dust-laden air), and in the food industry to separate foodstuffs from extracting liquids.
Application: Coarse Precipitate Filtration, Soil and Seed Testing, Food Separation, Air Pollution Monitoring
Qualitative Analysis:
Suitable for a wide range of identification and clarification procedures.
Rapid Filtration:
Medium filtering speed makes it ideal for separating coarser precipitates efficiently.
Multi-Industry Use:
Found in agricultural, environmental, and food industry applications.
Clarification Tasks:
Effectively used for clarifying liquids and separating solid particles from solutions.
Versatile Laboratory Grade:
Suitable for routine filtration involving a variety of substances and sample types.
Available Grades
| Grade | Whatman Equivalent | Speed | Thickness (mm) | Pore Size (μM) | Weight (g/m²) | Filtration Speed (sec*) | Burst Strength (kg/cm²) |
|---|---|---|---|---|---|---|---|
| 301 | = No.5 | Very Slow Filtering | 0.14 | 2-3 | 84 | 180 | > 0.30 |
| 302 | = No.3 | Medium Filtering | 0.3 | 12-16 | 150 | 65 | 3.90 |
| 303 | = No.2 | Medium Filtering | 0.16 | 5-8 | 87 | 50 | > 0.10 |
| 304 | = No.1 | Medium Filtering | 0.16 | 5-13 | 73 | 88 | 1.95 |
| 305 | = No.4 | Fast Filtering | 0.20 | 12-15 | 84 | 10 | > 0.30 |
Pack Size:
Price: £
Quantity:
| Code | Pack | Price | Qty | |||
|---|---|---|---|---|---|---|
| 304055 | 55mm x 100 Pack | £7.26 | | |||
| 304070 | 70mm x 100 Pack | £7.50 | | |||
| 304090 | 90mm x 100 Pack | £8.21 | | |||
| 304110 | 110mm x 100 Pack | £8.80 | | |||
| 304125 | 125mm x 100 Pack | £9.68 | | |||
| 304150 | 150mm x 100 Pack | £10.63 | | |||
| 304185 | 185mm x 100 Pack | £12.45 | | |||
| 304240 | 240mm x 100 Pack | £16.91 | | |||
| 304300 | 300mm x 100 Pack | £22.61 | | |||
| 304320 | 320mm x 100 Pack | £33.82 | | |||
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