Whatman 10300009 Quantitative Filter Papers

Whatman 10300009 Quantitative Filter Papers, Ashless, Grade 589/1, Diameter 90 mm

Whatman 10300009 Quantitative Filter Papers 90 mm are high-purity ashless filters designed for fast filtration of coarse precipitates. With an ash content of less than 0.01%, these filter papers are ideal for the Blaine test in the cement industry and ash content determination in foodstuffs. The black ribbon filter ensures reliable performance in gravimetric analysis and instrumental sample preparation.

Product Features

High Purity and Ashless Composition

• Composed of high-quality cotton linters with 98% alpha cellulose content, ensuring minimal impurities.
• Ash content of less than 0.01%, making it suitable for precise quantitative analysis.

Optimized Filtration Performance

• Fast filtration speed with Herzberg filtration time of 50 seconds for efficient processing.
• Retains coarse precipitates effectively, ensuring reliable test results.
• Available prepleated as Grade 589/1 ½, offering convenience for various filtration setups.

Blaine Test and Gravimetric Analysis Compatibility

• Specifically designed for cement fineness measurement using the Blaine test.
• Suitable for gravimetric determination of ash content in foodstuffs and quantitative standard methods.

Durable and Consistent Quality

• Manufactured with a uniform 190 µm thickness and 80 g/m² basis weight, providing strength and consistency.
• Maintains high mechanical strength even after wetting, ensuring ease of use in laboratory settings.

Applications

Cement Industry: Blaine Test

• Used for determining cement fineness by measuring permeability.
• Ensures accurate and consistent Blaine test results for quality control in cement production.

Food Industry: Ash Content Determination

• Applied in gravimetric analysis to determine ash content in foodstuffs and agricultural products.
• Supports compliance with food industry regulations and quality standards.

General Laboratory Filtration

• Ideal for coarse precipitate retention in various laboratory procedures.
• Suitable for sample preparation in instrumental analysis.

Product Specifications