Whatman Filter Paper No.2 9Cm 100/Pk

The Whatman™ Grade 2 Qualitative Filter Papers are high-quality cellulose filter papers designed for routine laboratory filtration requiring enhanced particle retention and absorbency. With a nominal particle retention of ~8 µm, Grade 2 offers improved filtration efficiency compared to Grade 1, making it ideal for applications where finer particle capture is required.

Manufactured to meet ASTM E 2187-09 standards, these filter papers deliver consistent performance, eliminating the need for additional lot suitability testing. Their balanced retention and flow characteristics make them suitable for a wide range of analytical, environmental, and industrial applications.

Key Features

Enhanced Particle Retention

• Nominal particle retention of ~8 µm
• More retentive than Grade 1 filter paper
• Suitable for finer particulate filtration

Reliable Quality & Standard Compliance

• Tested according to ASTM E 2187-09 specifications
• Guaranteed consistency across production lots
• Eliminates the need for additional quality verification

High Absorbency

• Improved absorbency supports:
  • Soil nutrient retention
  • Environmental sample testing
• Enhances performance in analytical workflows

Balanced Filtration Performance

• Slightly slower filtration compared to Grade 1
• Provides better separation of finer particles
• Suitable for qualitative analytical techniques

Flexible Format Options

• Available in circular and prepleated formats (Grade 2V)
• Prepleated filters offer:
  • Faster flow rates
  • Increased loading capacity
• Compatible with standard laboratory filtration setups

Applications

• Routine qualitative laboratory filtration
• Analytical identification of materials
• Soil testing and agricultural analysis
• Environmental monitoring (air and soil contaminants)
• Plant growth and nutrient retention studies
• General liquid clarification and filtration
• Educational and research laboratory use

Technical Specifications

Available Models and Ordering Information (Selected)

Workflow Integration

Sample Preparation → Filtration (Grade 2) → Filtrate Collection → Analysis

This ensures:

• Improved retention of fine particles
• Reliable qualitative analysis
• Consistent laboratory results

Unique Advantages

• Higher retention (8 µm) compared to Grade 1
• Meets ASTM standards for consistent quality
• Improved absorbency for environmental and agricultural applications
• Available in prepleated formats for enhanced performance
• Suitable for a wide range of routine laboratory tasks
• Trusted Whatman™ quality for reliable filtration

The Whatman™ Grade 2 Qualitative Filter Papers provide a reliable and versatile solution for laboratories requiring enhanced particle retention and consistent filtration performance. With their ASTM-certified quality, improved absorbency, and broad application range, they are an essential choice for routine analytical, environmental, and research workflows.