Whatman Filter Paper No.2 9Cm 100/Pk

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Specifications:

Application	Filtration, Analytical Chemistry
Storage Temperature	Ambient
Product Type	Filter Papers
Product Brand	Whatman™, Cytiva
Product Grade	Analytical grade

Overview
Resource

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

Parameter	Specification
Product Type	Qualitative Filter Paper
Grade	Whatman Grade 2
Material	Cellulose
Particle Retention	~8 µm
Filtration Speed	Medium-slow
Standard Compliance	ASTM E 2187-09
Format	Circles / Prepleated (Grade 2V)
Application	Qualitative filtration and analysis
Pack Size	Typically 100 sheets (varies by model)

Available Models and Ordering Information (Selected)

Catalog Number	Diameter	Format	Pack Size
1002-042	42.5 mm	Circles	100/pk
1002-047	47 mm	Circles	100/pk
1002-055	55 mm	Circles	100/pk
1002-070	70 mm	Circles	100/pk
1002-090	90 mm	Circles	100/pk
1002-110	110 mm	Circles	100/pk
1002-125	125 mm	Circles	100/pk
1002-150	150 mm	Circles	100/pk
1002-185	185 mm	Circles	100/pk
1002-240	240 mm	Circles	100/pk
1002-270	270 mm	Circles	100/pk
1002-320	320 mm	Circles	100/pk
1002-385	385 mm	Circles	100/pk
100210144	83 mm	Circles	100/pk
1002-10048	90 mm	Circles	5000/pk

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.