Double Rings 9 cm Filter Paper, Qualitative Folded Prepleated, No.102 90mm Dia, Biodegradable, 100/Box. Double rings of 9 cm filter paper are commonly used in laboratory settings for various filtration and separation processes.

• 90 mm Diameter Qualitative Filters
• As Like Whatman Grade 1 Filter Papers
• Covers a wide range of laboratory applications; Frequently used for clarifying liquids
• Areas of use include the food industry, agriculture, air pollution monitoring, and gas detection
• Widely used in education for teaching simple qualitative analytical separations
• Pack Size: 100 Pcs per Pack
• Manufacturer: Double Rings Manufacturer Co.

Characteristics of 9 cm Filter Paper:

• Size: The filter paper has a diameter of 9 cm, making it suitable for small to medium-sized filtration tasks.
• Material: Typically made from cellulose fibers, these papers offer good porosity and flow rates, effectively filtering out particles while allowing liquids to pass through.
• Double Rings: The double-ring design can enhance the strength and stability of the filter, preventing tearing and ensuring that it holds up during use.

Applications:

• Laboratory Filtration: Ideal for filtering solutions in chemistry and biology labs, including precipitates and other solid impurities from liquids.
• Coffee Brewing: Often used in coffee makers and pour-over setups, where they help brew coffee while keeping grounds separate from the liquid.
• Environmental Testing: Used for collecting and analyzing particulates in air and water samples.
• Industrial Processes: Applied in various industrial filtration processes to separate solids from liquids.

Advantages:

• Efficient Filtration: Provides effective separation of solids from liquids, yielding clear filtrates.
• Durability: The double-ring design offers enhanced structural integrity, reducing the risk of tearing.
• Versatility: Suitable for a wide range of applications across different fields