Description
Filter Paper Grade 1, 46 × 57 cm – Cat # 1001917 – Whatman (England)
Whatman Grade 1 Filter Paper (Cat # 1001917) is the industry standard for routine qualitative laboratory filtration. Manufactured in England from high-purity cellulose, this grade is widely recognized for its reliable performance, medium flow rate, and excellent particle retention characteristics. It is suitable for a broad range of analytical and preparative laboratory procedures.
With a typical particle retention of approximately 11 µm, Grade 1 filter paper is ideal for clarifying liquids, separating precipitates, and general analytical work. Its low ash content ensures minimal interference in gravimetric analysis, making it a trusted choice in research, pharmaceutical, environmental, and educational laboratories worldwide.
Specifications
| Parameter | Specification |
| Product Type | Qualitative Filter Paper |
| Brand | Whatman |
| Product Code | 1001917 |
| Grade | Grade 1 |
| Material | Cellulose |
| Dimensions | 460 × 570 mm |
| Format | Sheets |
| Typical Particle Retention | 11 µm |
| Thickness | 180 µm |
| Basis Weight | 87 g/m² |
| Ash Content | ≤ 0.06% |
| Air Flow Rate | 13 s / 100 ml / in² |
| Wet Burst Strength | 0.25 psi |
| Wettability | Hydrophilic |
| Sterility | Non-sterile |
| Pack Size | 100 sheets |
| Country of Origin | England |





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