Product Description: Whatman Filter Papers 240 mm – Grade-1 Qualitative
Whatman Filter Papers 240 mm – Grade-1 Qualitative are standard-grade cellulose filter papers designed for routine laboratory filtration, qualitative analytical separations, liquid clarification, and general sample preparation. These circular filter papers provide medium retention and flow characteristics, making them one of the widely used choices for routine laboratory filtration.
The Whatman Grade 1 Qualitative Filter Papers 240 mm are made from cellulose and have a nominal particle retention of 11 µm. The 240 mm circular format provides a larger filtration area for laboratory procedures requiring larger filter surfaces. (Sigma-Aldrich)
This product is identified by Cat No. 1001-240 and is supplied as a pack of 100 circular filter papers. The 1001-240 specification is listed by Whatman/Cytiva and laboratory suppliers for Grade 1 qualitative filter paper in 240 mm diameter.
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Whatman Filter Papers 240 MM |
| Brand | Whatman |
| Grade | Grade 1 |
| Filter Type | Qualitative Filter Paper |
| Diameter | 240 MM |
| Pack Quantity | 100 Circles |
| Cat No. | 1001-240 |
| Shape | Circular |
| Material | Cellulose |
| Particle Retention | 11 µm |
| Thickness | 180 µm |
| Ash Content | ≤0.06% |
| Filtration Speed | 150 sec/100 mL (Herzberg) |
| Application | Routine Laboratory Filtration & Qualitative Analysis |
The listed specifications for the 240 mm Grade 1 filter include 11 µm particle retention, 180 µm thickness, ≤0.06% ash, and 150 sec/100 mL Herzberg filtration speed.
Key Features
- 240 MM Diameter – Provides a large circular filtration area for laboratory applications.
- Grade 1 Qualitative Filter Paper – Standard grade for routine qualitative laboratory filtration.
- 11 µm Particle Retention – Provides medium retention suitable for routine solid-liquid separation.
- High-Quality Cellulose – Made from cellulose filter material.
- 100 Circles per Pack – Convenient for regular laboratory use.
- Circular Design – Can be folded and used with suitable laboratory funnels.
- Medium Flow Rate – Designed to provide a practical balance between retention and filtration speed.
- Consistent Filtration – Suitable for routine clarification and qualitative analytical procedures.

Typical Applications
Whatman Filter Papers 240 MM – Grade-1 Qualitative can be used for:
- Routine laboratory filtration
- Qualitative chemical analysis
- Precipitate separation
- Solution clarification
- Sample preparation
- Chemistry experiments
- Soil analysis
- Seed testing
- Food testing
- Environmental analysis
- Water-related laboratory testing
- Pharmaceutical research
- Educational laboratory applications
- Industrial quality control
- Research and development
Grade 1 is widely used for routine applications and qualitative analytical separations, including clarification of liquids and separation of precipitates. It is also used in agricultural soil analysis, seed testing, food processing, education, and environmental applications.
Whatman Grade 1 Filter Paper – 240 MM
The 240 MM Whatman Grade 1 Filter Paper is a standard qualitative filter paper with medium retention and flow properties. Its 11 µm particle retention makes it suitable for general filtration where routine separation of suspended particles or precipitates from liquids is required.
The larger 240 MM diameter is useful for applications where a greater filtration surface is required compared with smaller circular filter papers. The circular format can be folded according to the laboratory filtration setup and used with compatible funnels.
Qualitative Filtration
Qualitative filter papers are primarily used when the objective is to separate or clarify materials rather than perform highly precise quantitative gravimetric analysis. Whatman Grade 1 is a commonly used standard grade for routine qualitative laboratory work.
The filter paper can be used for separating solid particles, precipitates, and suspended materials from liquid samples during laboratory procedures.
Laboratory and Research Applications
Chemistry Laboratory
The filter papers are suitable for routine filtration during chemical experiments, including separation of precipitates and clarification of laboratory solutions.
Educational Laboratory
Schools, colleges, universities, and teaching laboratories can use these filter papers for practical chemistry experiments and basic qualitative analytical procedures.
Food Testing
Grade 1 qualitative filter papers can be used in food-related laboratory procedures for separating solid food materials from associated liquids or extraction liquids.
Environmental Testing
These filter papers can be used in selected environmental and water-related laboratory procedures where routine filtration and particle separation are required.
Agricultural Research
Grade 1 filter paper is also used in applications involving soil analysis and seed testing.
Product Information
Product Name: Whatman Filter Papers 240 MM – Grade-1 Qualitative
Brand: Whatman
Grade: Grade 1
Filter Type: Qualitative Filter Paper
Diameter: 240 MM
Shape: Circular
Material: Cellulose
Particle Retention: 11 µm
Thickness: 180 µm
Ash Content: ≤0.06%
Pack Quantity: 100 Circles
Cat No.: 1001-240
Frequently Asked Questions (FAQ)
1. What are Whatman Filter Papers 240 MM?
They are 240 mm diameter Grade 1 qualitative cellulose filter papers designed for routine laboratory filtration and qualitative analytical applications.
2. What is the Grade of this filter paper?
This product is Grade 1 Qualitative Filter Paper.
3. What is the diameter of the filter paper?
Each circular filter paper has a diameter of 240 MM.
4. What is the Cat No. of this product?
The Cat No. is 1001-240.
5. How many filter papers are included in one pack?
Each pack contains 100 circular filter papers.
6. What is the particle retention of Whatman Grade 1?
The nominal particle retention is 11 µm.
7. What material are these filter papers made from?
They are made from cellulose filter material.
8. What are Whatman Filter Papers 240 MM used for?
They are used for routine laboratory filtration, qualitative analytical separations, liquid clarification, precipitate separation, sample preparation, and other general laboratory applications.
9. Are these filter papers circular?
Yes. The 1001-240 version is supplied as circular filter papers with a 240 mm diameter.
10. Are Whatman Grade 1 filter papers suitable for routine laboratory use?
Yes. Grade 1 is widely used for routine laboratory applications requiring medium retention and flow characteristics.
Conclusion
Whatman Filter Papers 240 MM – Grade-1 Qualitative are reliable standard-grade cellulose filter papers designed for routine laboratory filtration, qualitative analysis, liquid clarification, and solid-liquid separation. With a 240 MM circular diameter, 11 µm particle retention, 100 circles per pack, and Cat No. 1001-240, they are suitable for chemistry, biology, environmental, agricultural, food, pharmaceutical, educational, and research laboratories.
Whatman Filter Papers 240 MM Price in Bangladesh
M/S Bright Scientific Co. supplies laboratory filter papers, scientific instruments, laboratory chemicals, glassware, and laboratory consumables throughout Bangladesh. For the latest Whatman Filter Papers 240 MM Grade-1 price in Bangladesh, availability, specifications, and ordering information, customers can contact Bright Scientific.









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