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Whatman™ Qualitative Filter Papers, Fluted, Grade 1V
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Pre-Folded Filter Paper for Fast, Efficient Routine Laboratory Filtration
Specifications:
| Application | Filtration, Food & Beverage |
| Storage Temperature | Ambient |
| Product Type | Filter Papers |
| Product Brand | Whatman™, Cytiva |
| Product Grade | Analytical grade |
Whatman™ Grade 1V Qualitative Filter Paper is a pre-folded (fluted) version of the widely used Whatman Grade 1 filter paper, designed to deliver fast and consistent gravity filtration in routine laboratory applications. Manufactured by Cytiva, this filter paper combines ease of use, reliable retention, and reproducible performance, making it a standard choice across analytical, educational, and industrial laboratories.
With a nominal particle retention of 11 µm and medium filtration speed (Herzberg ~150 s), Grade 1V provides an optimal balance between flow rate and filtration efficiency for general-purpose qualitative analysis.
Key Features
- Pre-Folded (Fluted) Design – Ready-to-use, eliminates manual folding and reduces preparation time
- Nominal Retention: 11 µm – Suitable for general particulate filtration
- Medium Filtration Speed – Efficient flow without compromising retention
- High-Quality Cellulose Construction – Ensures consistent and reproducible results
- Improved Flow Dynamics – Increased surface area enhances filtration speed
- Widely Trusted Whatman Quality – Industry standard for laboratory filtration
Applications
- Routine qualitative laboratory filtration
-
Separation of precipitates such as:
- Lead sulfate
- Calcium oxalate (hot solutions)
- Calcium carbonate
- Soil analysis in agriculture and environmental testing
- Food quality testing (solid-liquid separation)
- Educational laboratory experiments and teaching
- General sample clarification prior to analysis
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Whatman Grade 1V Filter Paper |
| Type | Qualitative, fluted (pre-folded) |
| Particle Retention | 11 µm |
| Filtration Speed | Medium (Herzberg ~150 s) |
| Material | Cellulose |
| Format | Fluted cone (ready-to-use) |
| Application | General laboratory filtration |
Available Sizes & Ordering Information
| Catalog Number | Diameter | Pack Size |
|---|---|---|
| 1201-125 | 125 mm | 100/pack |
| 1201-150 | 150 mm | 100/pack |
| 1201-185 | 185 mm | 100/pack |
| 1201-240 | 240 mm | 100/pack |
| 1201-270 | 270 mm | 100/pack |
| 1201-320 | 320 mm | 100/pack |
Whatman™ Grade 1V filter paper offers a time-saving and high-performance filtration solution, particularly suited for laboratories handling multiple samples daily. Its fluted design increases effective filtration area, resulting in faster flow rates and reduced clogging, even with particulate-rich samples.
As an extension of the globally recognized Whatman Grade 1 filter paper, it delivers trusted performance, reproducibility, and versatility, making it an essential consumable for routine analytical, food testing, agricultural, and educational laboratories.
- Diameter: Ø 125mm Ø 185mm Ø 240mm Ø 270mm Ø 320mm Ø 150 mm