Whatman Filter Papers - 240mm Grade 1 (100 pk)

These filter papers are part of Whatman’s popular range and are known for their consistency, reliability, and high-quality performance. Key Features of Whatman Grade 1 Filter Papers: Size: 240mm diameter is a medium size, ideal for filtering moderate volumes of liquids. It fits standard filter funnels and can be used in various laboratory filtration setups. Pack of 100 provides an economical and sufficient quantity for laboratories that frequently require filtration. Material: Made from cellulose fibers, which are typically unbleached, these filter papers provide high clarity and consistent filtration. They are strong and durable, making them resistant to tearing or breaking even when wet. Grade 1 Characteristics: Grade 1 is one of the most common types of filter paper from Whatman. It is characterized by medium filtration speed and medium particle retention. This grade is ideal for general-purpose laboratory filtration where you need to filter particles larger than 11 microns. Retention of particles: About 11 microns – it is effective for filtering fine to moderately fine particles. Porosity and Flow Rate: The filter paper has medium porosity, allowing it to retain particles larger than 11 microns, while also permitting faster liquid flow. The flow rate is moderate compared to finer grades, but it allows efficient processing of liquid volumes in general laboratory tasks. Applications: General Laboratory Filtration: Ideal for separating larger solid particles from liquids, such as in analytical chemistry, microbiology, and environmental testing. Water and Chemical Analysis: Often used to remove suspended solids from water samples or other chemical solutions. Food and Beverage: Used in filtering processes during food or beverage production or quality testing. Pharmaceutical: Used in pharmaceutical labs for purifying reagents, solvents, or suspensions. Durability and Strength: Whatman Grade 1 filter papers are designed to be strong, making them reliable for a variety of applications and resistant to tearing when wet.